J. P. Tordella, UNSTABLE FLOW OF MOLTEN POLYMERS, p.57, 1969.
DOI : 10.1016/B978-1-4832-2942-3.50008-9

G. A. Bialas and J. L. White, Extrusion of Polymer Melts and Melt Flow Instabilities. I. Experimental Study of Capillary Flow and Extrudate Distortion, Rubber Chemistry and Technology, vol.42, issue.3, pp.675-681, 1969.
DOI : 10.5254/1.3539248

C. J. Petrie and M. M. Denn, Instabilities in polymer processsing , A.I.Ch, E. J, vol.22, pp.209-236, 1976.

E. Boudreaux and J. A. Cuculo, Polymer Flow Instability: A Review and Analysis, Journal of Macromolecular Science, Part C, vol.12, issue.4941, pp.39-77, 1977.
DOI : 10.1080/00222357608064314

M. M. Denn, Issues in Viscoelastic Fluid Mechanics, Annual Review of Fluid Mechanics, vol.22, issue.1, pp.13-34, 1990.
DOI : 10.1146/annurev.fl.22.010190.000305

R. G. Larson, Instabilities in viscoelastic flows, Rheologica Acta, vol.33, issue.2, pp.213-263, 1992.
DOI : 10.1007/BF00366504

R. Koopmans, Défauts d'extrusion, Techniques de l'Ingénieur, pp.1-16, 2002.

D. Otter and J. L. , Mechanisms of melt fracture

D. Otter and J. L. , Some investigations of melt fracture, Rheologica Acta, vol.3, issue.2, pp.200-207, 1971.
DOI : 10.1007/BF02040441

I. B. Kazatchkov, S. G. Hatzikiriakos, and C. W. Stewart, Extrude distortion in the capillary/slit extrusion of a molten polypropylene, Polymer Engineering and Science, vol.26, issue.23, pp.1864-1871, 1995.
DOI : 10.1002/pen.760352305

J. C. Huang and Z. Tao, Melt fracture, melt viscosities, and die swell of polypropylene resin in capillary flow, Journal of Applied Polymer Science, vol.87, issue.10
DOI : 10.1002/app.11499

M. Fujiyama and H. Inata, Melt fracture behavior of polypropylene-type resins with narrow molecular weight distribution. I. Temperature dependence, Journal of Applied Polymer Science, vol.2, issue.12, pp.2111-2119, 2002.
DOI : 10.1002/app.10373

C. Venet, Défauts de surface et propriétés d'écoulement de polyéthylènes, Thèse de Doctorat, 1996.

E. Kissi, N. Piau, and J. M. , The different capillary flow regimes of entangled polydimethylsiloxane polymers: macroscopic slip at the wall, hysteresis and cork flow, Journal of Non-Newtonian Fluid Mechanics, vol.37, issue.1, pp.55-94, 1990.
DOI : 10.1016/0377-0257(90)80004-J

E. R. Howells and J. J. Benbow, Flow defects in polymer melts, Trans. Plast. Inst, vol.30, pp.240-253, 1962.

A. V. Ramamurthy, Wall Slip in Viscous Fluids and Influence of Materials of Construction, Journal of Rheology, vol.30, issue.2, pp.337-357, 1986.
DOI : 10.1122/1.549852

D. S. Kalika and M. M. Denn, Wall Slip and Extrudate Distortion in Linear Low???Density Polyethylene, Journal of Rheology, vol.31, issue.8, pp.815-834, 1987.
DOI : 10.1122/1.549942

G. Pomar, S. J. Muller, and M. M. Denn, Extrudate distortions in linear low-density polyethylene solutions and melt, Journal of Non-Newtonian Fluid Mechanics, vol.54, pp.143-151, 1994.
DOI : 10.1016/0377-0257(94)80019-7

P. L. Clegg, The flow properties of polyethylene and their effect on fabrication, pp.535-597, 1957.

N. Bergem, Visualization studies of polymer flow anomalies in extrusion, Proc. VIIth Congress on Rheology, pp.50-54, 1976.

P. Beaufils, B. Vergnes, and J. F. Agassant, Characterization of the Sharkskin Defect and its Development with the Flow Conditions**, International Polymer Processing, vol.4, issue.2, pp.78-84, 1989.
DOI : 10.3139/217.890078

C. Tzoganakis, B. C. Price, and S. G. Hatzikiriakos, Fractal analysis of the sharkskin phenomenon in polymer melt extrusion, Journal of Rheology, vol.37, issue.2, pp.355-366, 1993.
DOI : 10.1122/1.550447

C. Venet and B. Vergnes, Experimental characterization of sharkskin in polyethylenes, Journal of Rheology, vol.41, issue.4, pp.873-892, 1997.
DOI : 10.1122/1.550837

A. Weill, About the origin of sharkskin, Rheologica Acta, vol.2, issue.5, pp.623-632, 1980.
DOI : 10.1007/BF01517516

F. N. Cogswell, Stretching flow instabilities at the exits of extrusion dies, Journal of Non-Newtonian Fluid Mechanics, vol.2, issue.1, pp.37-47, 1977.
DOI : 10.1016/0377-0257(77)80031-1

M. Herrainen and A. Savolainen, Correlation between melt fracture and ultrasonic velocity, Rheologica Acta, vol.22, issue.4, pp.461-464, 1984.
DOI : 10.1007/BF01329201

R. Rutgers and M. R. Mackley, The correlation of experimental surface extrusion instabilities with numerically predicted exit surface stress concentrations and melt strength for linear low density polyethylene, Journal of Rheology, vol.44, issue.6, pp.1319-1334, 2000.
DOI : 10.1122/1.1319176

S. Q. Wang, P. A. Drda, and Y. W. Inn, Exploring molecular origins of sharkskin, partial slip, and slope change in flow curves of linear low density polyethylene, Journal of Rheology, vol.40, issue.5, pp.875-898, 1996.
DOI : 10.1122/1.550766

R. H. Moynihan, D. G. Baird, and R. Ramanathan, Additional observations on the surface melt fracture behavior of linear low-density polyethylene, Journal of Non-Newtonian Fluid Mechanics, vol.36, pp.255-263, 1990.
DOI : 10.1016/0377-0257(90)85012-N

S. G. Hatzikiriakos and J. M. Dealy, The onset of wall slip and sharkskin melt fracture in capillary flow, Polymer Engineering and Science, vol.24, issue.19, pp.493-499, 1994.
DOI : 10.1002/pen.760341902

S. I. Lai and G. W. Knight, Unique rheology and processsing aspects of ULDPE, SPE ANTEC Tech. Papers, vol.38, pp.2084-2087, 1992.

T. F. Ballenger, I. J. Chen, J. W. Crowder, G. E. Hagler, D. C. Bogue et al., Polymer Melt Flow Instabilities in Extrusion: Investigation of the Mechanism and Material and Geometric Variables, Transactions of the Society of Rheology, vol.15, issue.2, pp.195-215, 1971.
DOI : 10.1122/1.549207

D. Smedt, C. Nam, and S. , The processing benefits of fluoroelastomer application in LLDPE, Plast. Rubber Proc. Appl, vol.8, pp.11-16, 1987.

S. Nam, Mechanism of Fluoroelastomer Processing Aid in Extrusion of LLDPE**, International Polymer Processing, vol.1, issue.2, pp.98-101, 1987.
DOI : 10.3139/217.870098

A. Rudin, H. P. Schreiber, and D. Duchesne, Use of Fluorocarbon Elastomers as Processing Additives for Polyolefins, Polymer-Plastics Technology and Engineering, vol.30, issue.3, pp.199-234, 1990.
DOI : 10.1002/pen.760230803

G. Sornberger, J. C. Quantin, R. Fajolle, B. Vergnes, and J. F. Agassant, Experimental study of the sharkskin defect in linear low density polyethylene, Journal of Non-Newtonian Fluid Mechanics, vol.23, pp.123-135, 1987.
DOI : 10.1016/0377-0257(87)80014-9

N. Kissi and J. M. Piau, Adhesion of linear low density polyethylene for flow regimes with sharkskin, Journal of Rheology, vol.38, issue.5, pp.1447-1462, 1994.
DOI : 10.1122/1.550552

J. M. Piau, N. Kissi, F. Toussaint, and A. Mezghani, Distortions of polymer melt extrudates and their elimination using slippery surfaces, Rheologica Acta, vol.23, issue.6, pp.40-57, 1995.
DOI : 10.1007/BF00396053

S. G. Hatzikiriakos, P. Hong, W. Ho, and C. W. Stewart, The effect of teflon??? coatings in polyethylene capillary extrusion, Journal of Applied Polymer Science, vol.55, issue.4, pp.595-603, 1995.
DOI : 10.1002/app.1995.070550406

V. G. Ghanta, B. L. Riise, and M. M. Denn, Disappearance of extrusion instabilities in brass capillary dies, Journal of Rheology, vol.43, issue.2, pp.435-442, 1999.
DOI : 10.1122/1.550988

H. J. Larrazabal and A. N. Hrymak, Flow Instabilities of Linear PE in Capillary Dies, International Polymer Processing, vol.17, issue.1, pp.44-48, 2002.
DOI : 10.3139/217.1673

E. Kissi, N. Piau, J. M. Toussaint, and F. , Sharkskin and cracking of polymer melt extrudates, Journal of Non-Newtonian Fluid Mechanics, vol.68, issue.2-3, pp.271-290, 1997.
DOI : 10.1016/S0377-0257(96)01507-8

Y. W. Inn, R. J. Fischer, and M. T. Shaw, Visual observation of development of sharkskin melt fracture in polybutadiene extrusion, Rheologica Acta, vol.37, issue.6, pp.573-582, 1998.
DOI : 10.1007/s003970050144

J. M. Piau, N. Kissi, and A. Mezghani, Slip flow of polybutadiene through fluorinated dies, Journal of Non-Newtonian Fluid Mechanics, vol.59, issue.1
DOI : 10.1016/0377-0257(95)01349-Z

F. Legrand and J. M. Piau, Spatially resolved stress birefringence and flow visualization in the flow instabilities of a polydimethylsiloxane extruded through a slit die, Journal of Non-Newtonian Fluid Mechanics, vol.77, issue.1-2, pp.123-150, 1998.
DOI : 10.1016/S0377-0257(97)00129-8

J. R. Barone and S. Q. Wang, Flow birefringence study of sharkskin and stress relaxation in polybutadiene melts, Rheologica Acta, vol.38, issue.5
DOI : 10.1007/s003970050191

J. R. Barone and S. Q. Wang, Rheo-optical observations of sharkskin formation in slit-die extrusion, Journal of Rheology, vol.45, issue.1, pp.49-60, 2001.
DOI : 10.1122/1.1332385

K. B. Migler, Y. Son, F. Qiao, and K. Flynn, Extensional deformation, cohesive failure, and boundary conditions during sharkskin melt fracture, Journal of Rheology, vol.46, issue.2, pp.383-400, 2002.
DOI : 10.1122/1.1445186

J. F. Agassant, D. Arda, C. Combeaud, A. Merten, H. Münstedt et al., Polymer Processing Extrusion Instabilities and Methods for their Elimination or Minimisation, International Polymer Processing, vol.21, issue.3, pp.239-255, 2006.
DOI : 10.3139/217.0084
URL : https://hal.archives-ouvertes.fr/hal-00512800

D. G. Kiriakidis, H. J. Park, E. Mitsoulis, B. Vergnes, and J. F. Agassant, A study of stress distribution in contraction flows of anb LLDPE melt, Journal of Non-Newtonian Fluid Mechanics, vol.47, pp.339-356, 1993.
DOI : 10.1016/0377-0257(93)80057-I

A. D. Mackley and M. R. , The effect of die exit curvature, die surface roughness and a fluoropolymer additive on sharkskin extrusion instabilities in polyethylene processing, J. Non-Newt. Fluid Mech, vol.126, pp.47-61, 2005.

S. J. Kurtz, THE DYNAMICS OF SHARKSKIN MELT FRACTURE: EFFECT OF DIE GEOMETRY, Theoretical and Applied Rheology, P. Moldenaers, pp.377-379, 1992.
DOI : 10.1016/B978-0-444-89007-8.50151-9

J. Molenaar and R. J. Koopmans, Modeling Polymer Flow Instabilities, J. Rheol, vol.38, pp.99-109, 1994.
DOI : 10.1007/978-3-322-82967-2_27

J. R. Barone, N. Plucktaveesak, and S. Q. Wang, Interfacial molecular instability mechanism for sharkskin phenomenon in capillary extrusion of linear polyethylenes, Journal of Rheology, vol.42, issue.4, pp.813-832, 1998.
DOI : 10.1122/1.550902

S. Q. Wang and P. A. Drda, Stick-slip transition in capillary flow of linear polyethylene: 3. Surface conditions, Rheologica Acta, vol.40, issue.2, pp.128-134, 1997.
DOI : 10.1007/BF00366818

J. D. Shore, D. Ronis, L. Piché, and M. Grant, Sharkskin texturing instabilities in the flow of polymer melts, Physica A: Statistical Mechanics and its Applications, vol.239, issue.1-3, pp.350-357, 1997.
DOI : 10.1016/S0378-4371(96)00491-8

J. Molenaar, R. J. Koopmans, D. Doelder, and C. F. , Onset of the sharkskin phenomenon in polymer extrusion, Physical Review E, vol.58, issue.4, pp.4683-4691, 1998.
DOI : 10.1103/PhysRevE.58.4683

R. J. Koopmans and J. Molenaar, The ?sharkskin effect? in polymer extrusion, Polymer Engineering & Science, vol.5, issue.1, pp.101-107, 1998.
DOI : 10.1002/pen.10169

M. Fernandez, J. F. Vega, A. Santamaria, A. Munoz-escalona, and P. Lafuente, The effect of chain architecture on ???sharkskin??? of metallocene polyethylenes, Macromolecular Rapid Communications, vol.21, issue.14, pp.973-978, 2000.
DOI : 10.1002/1521-3927(20000901)21:14<973::AID-MARC973>3.0.CO;2-7

N. Nithi-uthai, Manas-Zloczower I., Numerical simulation of sharkskin phenomena in polymer melts, Appl. Rheol, vol.64, issue.13, pp.79-86, 2003.

W. Fischer, R. J. Shaw, and M. T. , Studies of sharkskin melt fracture using a model polymer, SPE Antec Tech. Papers, pp.1280-1282, 1999.

M. R. Mackley, R. P. Rutgers, and D. G. Gilbert, Surface instabilities during the extrusion of linear low density polyethylene1Dedicated to the memory of Professor Gianni Astarita.1, Journal of Non-Newtonian Fluid Mechanics, vol.76, issue.1-3, pp.281-297, 1998.
DOI : 10.1016/S0377-0257(97)00122-5

W. Wang, L. S. Shaw, and M. T. , Efforts to find stick-slip flow in the land of a die under sharkskin melt fracture conditions, Macromol. Symp, vol.158, pp.65-75, 2000.

M. T. Shaw and L. Wang, Sharkskin melt fracture: recent findings using model geometries, Proc. XIII th Congress on Rheology, pp.170-172, 2000.

S. G. Hatzikiriakos, The onset of wall slip and sharkskin melt fracture in capillary flow, Polymer Engineering and Science, vol.24, issue.19, pp.493-499, 1994.
DOI : 10.1002/pen.760341902

R. P. Rutgers and M. R. Mackley, The effect of channel geometry and wall boundary conditions on the formation of extrusion surface instabilities for LLDPE, Journal of Non-Newtonian Fluid Mechanics, vol.98, issue.2-3, pp.185-199, 2001.
DOI : 10.1016/S0377-0257(01)00103-3

C. Venet and B. Vergnes, Stress distribution around capillary die exit: an interpretation of the onset of sharkskin defect, Journal of Non-Newtonian Fluid Mechanics, vol.93, issue.1, pp.117-132, 2000.
DOI : 10.1016/S0377-0257(00)00105-1
URL : https://hal.archives-ouvertes.fr/hal-00538179

E. Miller and J. P. Rothstein, Control of the sharkskin instability in the extrusion of polymer melts using induced temperature gradients, Rheologica Acta, vol.13, issue.2, pp.160-173, 2004.
DOI : 10.1007/s00397-004-0393-4

R. J. Koopmans and J. Molenaar, The ?sharkskin effect? in polymer extrusion, Polymer Engineering & Science, vol.5, issue.1, pp.101-107, 1998.
DOI : 10.1002/pen.10169

D. D. Joseph and Y. J. Liu, Letter to the Editor: Steep wave fronts on extrudates of polymer melts and solutions, Journal of Rheology, vol.40, issue.2, pp.317-319, 1996.
DOI : 10.1122/1.550743

P. K. Dhori, R. S. Jeyaseelan, A. J. Giacomin, and J. C. Slattery, Common line motion III: implications in polymer extrusion, Journal of Non-Newtonian Fluid Mechanics, vol.71, issue.3, pp.213-243, 1997.
DOI : 10.1016/S0377-0257(97)00009-8

S. J. Kurtz, Die geometry solutions to sharkskin melt fracture, in: Advances in, pp.339-407, 1984.

F. J. Lim and W. R. Schowalter, Wall Slip of Narrow Molecular Weight Distribution Polybutadienes, Journal of Rheology, vol.33, issue.8, pp.1359-1382, 1989.
DOI : 10.1122/1.550073

C. Dubrocq-baritaud, Mécanismes d'action dePolymer Processing Aids" fluorés durant l'extrusion d'un polyéthylène basse densité linéaire : étude expérimentale et interprétations, Thèse de Doctorat, 2008.

A. Allal, A. Lavernhe, B. Vergnes, and G. Marin, Relationships between molecular structure and sharkskin defect for linear polymers, Journal of Non-Newtonian Fluid Mechanics, vol.134, issue.1-3, pp.127-135, 2006.
DOI : 10.1016/j.jnnfm.2005.12.010
URL : https://hal.archives-ouvertes.fr/hal-00514104

A. A. Griffith, The Phenomena of Rupture and Flow in Solids, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, vol.221, issue.582-593, pp.163-198, 1921.
DOI : 10.1098/rsta.1921.0006

A. Allal and B. Vergnes, Molecular design to eliminate sharkskin defect for linear polymers, Journal of Non-Newtonian Fluid Mechanics, vol.146, issue.1-3, pp.45-50, 2007.
DOI : 10.1016/j.jnnfm.2006.12.003
URL : https://hal.archives-ouvertes.fr/hal-00510572

E. Kissi, N. Léger, L. Piau, J. M. Mezghani, and A. , Effect of surface properties on polymer melt slip and extrusion defects, Journal of Non-Newtonian Fluid Mechanics, vol.52, issue.2, pp.249-261, 1994.
DOI : 10.1016/0377-0257(94)80054-5

O. Kulikov and K. Hornung, A simple way to suppress surface defects in the processing of polyethylene, Journal of Non-Newtonian Fluid Mechanics, vol.124, issue.1-3, pp.103-114, 2004.
DOI : 10.1016/j.jnnfm.2004.07.009

A. Allal, B. Vergnes, and G. Marin, Forme de la distribution des masses molaires pour supprimer le d??faut de peau de requin, Comptes Rendus Physique, vol.8, issue.1, pp.109-114, 2007.
DOI : 10.1016/j.crhy.2006.12.012

K. B. Migler, C. Lavallée, M. P. Dillon, S. S. Woods, and C. L. Gettinger, Visualizing the elimination of sharkskin through fluoropolymer additives: Coating and polymer???polymer slippage, Journal of Rheology, vol.45, issue.2, pp.565-581, 2001.
DOI : 10.1122/1.1349136

C. Dubrocq-baritaud, E. Darque-ceretti, and B. Vergnes, Multi-scale phenomena induced by fluoropolymer processing aids during the extrusion of linear-low density polyethylene, Journal of Non-Newtonian Fluid Mechanics, vol.166, issue.1-2, pp.1-11, 2011.
DOI : 10.1016/j.jnnfm.2010.09.008
URL : https://hal.archives-ouvertes.fr/hal-00570436

C. Dubrocq-baritaud, E. Darque-ceretti, and B. Vergnes, Influence of die surface on the efficiency of fluoropolymer processing aids during the extrusion of linear-low density polyethylene, Journal of Non-Newtonian Fluid Mechanics, vol.166, issue.14-15, pp.847-858, 2011.
DOI : 10.1016/j.jnnfm.2011.05.002
URL : https://hal.archives-ouvertes.fr/hal-00599721

C. Dubrocq-baritaud, E. Darque-ceretti, and B. Vergnes, Fluoropolymer processing aids in linear-low density polyethylene extrusion: How to improve their efficiency?, Journal of Non-Newtonian Fluid Mechanics, vol.208, issue.209, 2014.
DOI : 10.1016/j.jnnfm.2014.04.002
URL : https://hal.archives-ouvertes.fr/hal-01024342

D. Kay, P. J. Carreau, P. G. Lafleur, L. Robert, and B. Vergnes, A study of the stick-slip phenomenon in single-screw extrusion of linear polyethylene, Polymer Engineering & Science, vol.42, issue.1, pp.78-90, 2003.
DOI : 10.1002/pen.10007
URL : https://hal.archives-ouvertes.fr/hal-00533110

E. B. Bagley, I. M. Cabott, and D. C. West, Discontinuity in the Flow Curve of Polyethylene, Journal of Applied Physics, vol.29, issue.1, pp.109-110, 1958.
DOI : 10.1063/1.1722930

R. Sabia and M. E. Mullier, On the discontinuity in the flow curve of polyethylene, Journal of Applied Polymer Science, vol.6, issue.24, pp.842-843, 1962.
DOI : 10.1002/app.1962.070062416

J. P. Tordella, Unstable flow of molten polymers: A second site of melt fracture, Journal of Applied Polymer Science, vol.7, issue.1, pp.215-229, 1963.
DOI : 10.1002/app.1963.070070119

J. M. Lupton and J. W. Regester, Melt flow of polyethylene at high rates, Polymer Engineering and Science, vol.7, issue.4, pp.235-245, 1965.
DOI : 10.1002/pen.760050406

A. P. Metzger and C. W. Hamilton, The oscillating shear phenomenon in HDPE, SPE Trans, vol.4, pp.107-112, 1964.

F. N. Cogswell, Note: On the oscillating flow of HDPE in a capillary, Journal of Rheology, vol.37, issue.2, pp.407-408, 1999.
DOI : 10.1122/1.550450

S. G. Hatzikiriakos and J. Dealy, Wall slip of molten high density polyethylenes. II. Capillary rheometer studies, Journal of Rheology, vol.36, issue.4, pp.703-741, 1992.
DOI : 10.1122/1.550313

H. Li, H. P. Hurlimann, and J. Meissner, Two separate ranges for shear flow instabilities with pressure oscillations in capillary extrusion of HDPE and LLDPE, Polymer Bulletin, vol.15, issue.1, pp.83-88, 1986.
DOI : 10.1007/BF00263497

J. Becker, P. Bengtsson, C. Klason, J. Kubat, and P. Saha, Pressure Oscillations during Capillary Extrusion of High Density Polyethylene, International Polymer Processing, vol.6, issue.4, pp.318-325, 1991.
DOI : 10.3139/217.910318

J. M. Piau and N. Kissi, Measurement and modelling of friction in polymer melts during macroscopic slip at the wall, Journal of Non-Newtonian Fluid Mechanics, vol.54, pp.121-142, 1994.
DOI : 10.1016/0377-0257(94)80018-9

L. Robert, B. Vergnes, and Y. Demay, Complex transients in the capillary flow of linear polyethylene, Journal of Rheology, vol.44, issue.5, pp.1183-1187, 2000.
DOI : 10.1122/1.1289284
URL : https://hal.archives-ouvertes.fr/hal-00537940

J. Ui, Y. Ishimaru, H. Murakami, N. Fukushima, and Y. Mori, Study of flow properties of polymer melt with the screw extruder, Polymer Engineering and Science, vol.19, issue.4, pp.295-305, 1964.
DOI : 10.1002/pen.760040411

G. V. Vinogradov, N. I. Insarova, B. B. Boiko, and E. K. Borisenkova, Critical regimes of shear in linear polymers, Polymer Engineering and Science, vol.42, issue.4, pp.323-334, 1972.
DOI : 10.1002/pen.760120503

E. Uhland and . Das-anormale-fliessverhalten-von-polyäthylene-hoher-dichte, Das anomale Flie???verhalten von Poly???thylen hoher Dichte, Rheologica Acta, vol.8, issue.1, pp.1-24, 1979.
DOI : 10.1007/BF01515684

S. Eggen and E. Hinrichsen, Swell and distortions of high-density polyethylene extruded through capillary dies, Polymer Engineering & Science, vol.15, issue.3, pp.410-424, 1996.
DOI : 10.1002/pen.10428

V. Durand, B. Vergnes, J. F. Agassant, E. Benoit, and R. J. Koopmans, Experimental and theoretical approach of the oscillating flow of high density polyethylenes, J. Rheol, vol.40, pp.83-394, 1996.

L. Robert, Instabilité oscillante de polyéthylènes linéaires : observations et interprétations, Thèse de Doctorat, 2001.

R. W. Myerholtz, Oscillating flow behavior of high-density polyethylene melts, Journal of Applied Polymer Science, vol.11, issue.5, pp.687-698, 1967.
DOI : 10.1002/app.1967.070110506

J. M. Torregrosa, A. Weill, and J. Druz, Relation between kneading behavior and flow instability of a high molecular weight high density polyethylene, applications to extrusion, Polymer Engineering and Science, vol.9, issue.12, pp.768-775, 1981.
DOI : 10.1002/pen.760211205

S. Pudjijanto and M. M. Denn, A stable ??????island?????? in the slip???stick region of linear low???density polyethylene, Journal of Rheology, vol.38, issue.6, pp.1735-1744, 1994.
DOI : 10.1122/1.550523

G. V. Vinogradov, V. P. Protasov, and V. E. Dreval, The rheological behavior of flexible-chain polymers in the region of high shear rates and stresses, the critical process of spurting, and supercritical conditions of their movement at T > Tg, Rheologica Acta, vol.180, issue.1, pp.46-61, 1984.
DOI : 10.1007/BF01333875

G. V. Vinogradov, A. Malkin, Y. Ya, Y. G. Borisenkova, E. K. Yarlykov et al., Viscoelastic properties and flow of narrow distribution polybutadienes and polyisoprenes, Journal of Polymer Science Part A-2: Polymer Physics, vol.10, issue.6, pp.1061-1084, 1972.
DOI : 10.1002/pol.1972.160100609

E. B. Bagley, End Corrections in the Capillary Flow of Polyethylene, Journal of Applied Physics, vol.28, issue.5, pp.624-627, 1957.
DOI : 10.1063/1.1722814

P. A. Drda and S. Q. Wang, Stick-Slip Transition at Polymer Melt/Solid Interfaces, Physical Review Letters, vol.75, issue.14, pp.2698-2701, 1995.
DOI : 10.1103/PhysRevLett.75.2698

L. L. Blyler and A. C. Hart, Capillary flow instability of ethylene polymer melts, Polymer Engineering and Science, vol.88, issue.4, p.193, 1970.
DOI : 10.1002/pen.760100402

X. Yang, S. Q. Wang, A. Halasa, and H. Ishida, Fast flow behavior of highly entangled monodisperse polymers, Rheologica Acta, vol.37, issue.5, pp.415-423, 1998.
DOI : 10.1007/s003970050128

J. Lyngaee-jorgensen and B. Marcher, ???SPURT FRACTURE??? IN CAPILLARY FLOW, Chemical Engineering Communications, vol.22, issue.1-5, pp.117-151, 1985.
DOI : 10.1080/00986448508911645

L. A. Utracki and R. Gendron, Pressure Oscillation During Extrusion of Polyethylenes. II, Journal of Rheology, vol.28, issue.5, pp.601-623, 1984.
DOI : 10.1122/1.549769

S. Q. Wang and P. A. Drda, Stick???Slip Transition in Capillary Flow of Polyethylene. 2. Molecular Weight Dependence and Low-Temperature Anomaly, Macromolecules, vol.29, issue.11, pp.4115-4119, 1996.
DOI : 10.1021/ma951512e

S. Q. Wang and P. A. Drda, Molecular instabilities in capillary flow of polymer melts: Interfacial stick-slip transition, wall slip and extrudate distortion, Macromolecular Chemistry and Physics, vol.198, issue.3, pp.673-701, 1997.
DOI : 10.1002/macp.1997.021980302

A. J. Waddon and A. Keller, A temperature window of extrudability and reduced flow resistance in high-molecular weight polyethylene; interpretation in terms of flow-induced mobile hexagonal phase, Journal of Polymer Science Part B: Polymer Physics, vol.28, issue.7, pp.1063-1073, 1990.
DOI : 10.1002/polb.1990.090280706

J. W. Kolnaar and A. Keller, A temperature window of reduced flow resistance in polyethylene with implications for melt flow rheology: 1. The basic effect and principal parameters, Polymer, vol.35, issue.18, pp.3863-3874, 1994.
DOI : 10.1016/0032-3861(94)90269-0

J. Perez-gonzalez, L. De-vargas, V. Pavlinek, B. Hausnerova, and P. Saha, Temperature-dependent instabilities in the capillary flow of a metallocene linear lowdensity polyethylene melt, J. Rheol, vol.126, issue.44, pp.441-451, 2000.

K. Sato and A. Toda, Physical Mechanism of Stick-Slip Behavior in Polymer Melt Extrusion: Temperature Dependence of Flow Curve, Journal of the Physical Society of Japan, vol.70, issue.11, pp.3268-3273, 2001.
DOI : 10.1143/JPSJ.70.3268

A. Santamaria, M. Fernandez, E. Sanz, P. Lafuente, and A. Munoz-escalona, Postponing sharkskin of metallocene polyethylenes at low temperatures: the effect of molecular parameters, Polymer, vol.44, issue.8, pp.2473-2480, 2003.
DOI : 10.1016/S0032-3861(03)00048-X

T. W. Huseby, Hypothesis on a Certain Flow Instability in Polymer Melts, Transactions of the Society of Rheology, vol.10, issue.1, pp.181-190, 1966.
DOI : 10.1122/1.549056

J. K. Hunter and M. Slemrod, Viscoelastic fluid flow exhibiting hysteritic phase changes, Physics of Fluids, vol.26, issue.9, pp.2345-2351, 1983.
DOI : 10.1063/1.864437

T. C. Mcleish and R. C. Ball, A molecular approach to the spurt effect in polymer melt flow, Journal of Polymer Science Part B: Polymer Physics, vol.24, issue.8, pp.1735-1745, 1986.
DOI : 10.1002/polb.1986.090240809

T. C. Mcleish, Stability of the interface between two dynamic phases in capillary flow of linear polymer melts, Journal of Polymer Science Part B: Polymer Physics, vol.25, issue.11, pp.2253-2264, 1987.
DOI : 10.1002/polb.1987.090251103

Y. H. Lin, Unified molecular theories of linear and non-linear viscoelasticity of flexible linear polymers???explaining the 3.4 power law of the zero-shear viscosity and the slip-stick melt fracture phenomenon, Journal of Non-Newtonian Fluid Mechanics, vol.23, pp.163-187, 1987.
DOI : 10.1016/0377-0257(87)80017-4

Y. H. Lin, Explanation for Slip???Stick Melt Fracture in Terms of Molecular Dynamics in Polymer Melts, Journal of Rheology, vol.29, issue.6, pp.605-637, 1985.
DOI : 10.1122/1.549804

R. W. Kolkka, D. S. Malkus, M. G. Hansen, G. R. Ierley, and R. A. Worthing, Spurt phenomena of the Johnson-Segalman fluid and related models, Journal of Non-Newtonian Fluid Mechanics, vol.29, pp.303-335, 1988.
DOI : 10.1016/0377-0257(88)85059-6

R. W. Kolkka and G. R. Ierley, Phase space analysis of the spurt phenomenon for the Giesekus viscoelastic fluid model, Journal of Non-Newtonian Fluid Mechanics, vol.33, issue.3, pp.305-323, 1989.
DOI : 10.1016/0377-0257(89)80004-7

D. S. Malkus, J. A. Nohel, and B. J. Plohr, Dynamics of shear flow of a non-Newtonian fluid, Journal of Computational Physics, vol.87, issue.2, pp.464-487, 1990.
DOI : 10.1016/0021-9991(90)90261-X

J. A. Deiber and W. R. Schowalter, On the comparison of simple non-monotonic constitutive equations with data showing slip of well-characterized polybutadienes, Journal of Non-Newtonian Fluid Mechanics, vol.40, issue.1, p.141, 1991.
DOI : 10.1016/0377-0257(91)87030-2

A. C. Aarts and A. A. Van-de-ven, The occurrence of periodic distortions in the extrusion of polymeric melts, Continuum Mechanics and Thermodynamics, vol.11, issue.2, pp.113-139, 1999.
DOI : 10.1007/s001610050107

G. V. Vinogradov and V. N. Manin, An experimental study of elastic turbulence, Kolloid-Zeitschrift und Zeitschrift für Polymere, pp.93-98, 1965.

G. V. Vinogradov and L. I. Ivanova, Viscous properties of polymer melts and elastomers exemplified by ethylene-propylene copolymer, Rheologica Acta, vol.91, issue.9, pp.209-222, 1967.
DOI : 10.1007/BF01976438

G. V. Vinogradov and L. I. Ivanova, Wall slippage and elastic turbulence of polymers in the rubbery state, Rheologica Acta, vol.191, issue.3, pp.243-254, 1968.
DOI : 10.1007/BF01985785

G. V. Vinogradov, Ultimate regimes of deformation of linear flexible chain fluid polymers, Polymer, vol.18, issue.12, pp.1275-1285, 1977.
DOI : 10.1016/0032-3861(77)90293-2

J. J. Benbow and P. Lamb, New aspects of melt fracture, Polymer Engineering and Science, vol.46, issue.1, pp.7-17, 1963.
DOI : 10.1002/pen.760030104

M. Mooney, Explicit Formulas for Slip and Fluidity, Journal of Rheology, vol.2, issue.2, pp.210-222, 1931.
DOI : 10.1122/1.2116364

S. G. Hatzikiriakos and J. Dealy, Role of slip and fracture in the oscillating flow of HDPE in a capillary, Journal of Rheology, vol.36, issue.5, pp.845-884, 1992.
DOI : 10.1122/1.550320

H. Munstedt, M. Schmidt, and E. Wassner, Stick and slip phenomena during extrusion of polyethylene melts as investigated by laser-Doppler velocimetry, Journal of Rheology, vol.44, issue.2, pp.245-255, 2000.
DOI : 10.1122/1.551092

L. Robert, B. Vergnes, and Y. Demay, Flow birefringence study of the stick???slip instability during extrusion of high-density polyethylenes, Journal of Non-Newtonian Fluid Mechanics, vol.112, issue.1, pp.27-42, 2003.
DOI : 10.1016/S0377-0257(03)00059-4
URL : https://hal.archives-ouvertes.fr/hal-00613069

L. Robert, B. Vergnes, and Y. Demay, Stick-slip flow of high density polyethylene in a transparent slit die investigated by laser Doppler velocimetry, Rheologica Acta, vol.43, issue.1, pp.89-98, 2004.
DOI : 10.1007/s00397-003-0323-x
URL : https://hal.archives-ouvertes.fr/hal-00015321

J. Perez-gonzalez, Study of the stick-slip phenomenon of linear low-density polyethylene in a brass die by using electrical measurements, Journal of Rheology, vol.49, issue.3, pp.571-583, 2005.
DOI : 10.1122/1.1888645

S. Tonon, A. Lavernhe-gerbier, F. Flores, A. Allal, and C. Guerret-piécourt, Electrical charging during the sharkskin instability of a metallocene melt, Journal of Non-Newtonian Fluid Mechanics, vol.126, issue.2-3, pp.63-69, 2005.
DOI : 10.1016/j.jnnfm.2004.01.027
URL : https://hal.archives-ouvertes.fr/hal-00163669

S. Q. Wang and P. A. Drda, Superfluid-Like Stick???Slip Transition in Capillary Flow of Linear Polyethylene Melts. 1. General Features, Macromolecules, vol.29, issue.7, pp.2617-2632, 1995.
DOI : 10.1021/ma950898q

S. Q. Wang and P. A. Drda, Stick???Slip Transition in Capillary Flow of Polyethylene. 2. Molecular Weight Dependence and Low-Temperature Anomaly, Macromolecules, vol.29, issue.11, pp.4115-4119, 1996.
DOI : 10.1021/ma951512e

S. Q. Wang, Molecular Transitions and Dynamics at Polymer / Wall Interfaces: Origins of Flow Instabilities and Wall Slip, Adv. Polym. Sci, vol.138, pp.227-275, 1999.
DOI : 10.1007/3-540-69711-X_6

X. Yang, S. Q. Wang, A. Halasa, and H. Ishida, Fast flow behavior of highly entangled monodisperse polymers . 2. Barrel correction, hysteresis and self-oscillation in capillary flow of PB melts, Rheol. Acta, vol.37, pp.424-429, 1998.

F. Brochard and P. G. De-gennes, Shear-dependent slippage at a polymer/solid interface, Langmuir, vol.8, issue.12, pp.3033-3037, 1992.
DOI : 10.1021/la00048a030

A. Allal and B. Vergnes, Molecular interpretation of the ???stick???slip??? defect of linear polymers, Journal of Non-Newtonian Fluid Mechanics, vol.164, issue.1-3, pp.1-8, 2009.
DOI : 10.1016/j.jnnfm.2009.06.007
URL : https://hal.archives-ouvertes.fr/hal-00508251

A. Allal and B. Vergnes, Effect of die surface on the onset of stick-slip transition in the flow of molten linear polymers, Journal of Non-Newtonian Fluid Mechanics, vol.167, issue.168, pp.167-168, 2012.
DOI : 10.1016/j.jnnfm.2011.10.002
URL : https://hal.archives-ouvertes.fr/hal-00647830

G. C. Georgiou and D. Vlassopoulos, On the stability of the simple shear flow of a Johnson???Segalman fluid, Journal of Non-Newtonian Fluid Mechanics, vol.75, issue.1, pp.77-97, 1998.
DOI : 10.1016/S0377-0257(97)00078-5

G. C. Georgiou and M. J. Crochet, Compressible viscous flow in slits with slip at the wall, Journal of Rheology, vol.38, issue.3, pp.639-654, 1994.
DOI : 10.1122/1.550479

D. Doelder, C. F. Koopmans, R. J. Molenaar, J. Van-de-ven, and A. A. , Comparing the wall slip and the constitutive approach for modelling spurt instabilities in polymer melt flows, Journal of Non-Newtonian Fluid Mechanics, vol.75, issue.1, pp.25-41, 1998.
DOI : 10.1016/S0377-0257(97)00081-5

K. P. Adewale and A. I. Leonov, Modeling spurt and stress oscillations in flows of molten polymers, Rheologica Acta, vol.15, issue.5, pp.110-127, 1997.
DOI : 10.1007/BF00366817

M. Fyrillas, G. Georgiou, D. Vlassopoulos, and S. G. Hatzikiriakos, A mechanism for extrusion instabilities in polymer melts, Polymer Engineering & Science, vol.41, issue.12, pp.2498-2504, 1999.
DOI : 10.1002/pen.11637

E. Achilleos, G. T. Georgiou, and S. G. Hatzikiriakos, On numerical simulation of polymer extrusion instabilities, Appl. Rheo, vol.12, pp.88-104, 2002.

J. L. Dubbeldam and J. Molenaar, Dynamics of the spurt instability in polymer extrusion, Journal of Non-Newtonian Fluid Mechanics, vol.112, issue.2-3, pp.217-235, 2003.
DOI : 10.1016/S0377-0257(03)00101-0

D. Doelder, C. F. Koopmans, R. J. Molenaar, and J. , Quantitative modelling of HDPE spurt experiments using wall slip and generalized Newtonian flows, J. Non-Newt

S. Okubo and Y. Hori, Notes: Model Analysis of Oscillating Flow of High???Density Polyethylene Melt, Journal of Rheology, vol.24, issue.2, pp.253-257, 1980.
DOI : 10.1122/1.549592

B. Van-der-pol, On relaxation oscillations, pp.978-992, 1926.

J. M. Greenberg and Y. Demay, A simple model of the melt fracture instability, European Journal of Applied Mathematics, vol.4, issue.03, pp.337-357, 1994.
DOI : 10.1122/1.550313

D. S. Done, D. G. Baird, and A. E. Everage, THE INFLUENCE OF POROUS MEDIA ON THE FLOW OF POLYMER MELTS IN CAPILLARIES???, Chemical Engineering Communications, vol.14, issue.2, pp.293-309, 1983.
DOI : 10.1080/00986448308940293

J. M. Piau, S. Nigen, and N. Kissi, Effect of die entrance filtering on mitigation of upstream instability during extrusion of polymer melts, Journal of Non-Newtonian Fluid Mechanics, vol.91, issue.1, pp.37-57, 2000.
DOI : 10.1016/S0377-0257(99)00083-X

Y. Goutille and J. Guillet, Influence of filters in the die entrance region on gross melt fracture: extrudate and flow visualization, Journal of Non-Newtonian Fluid Mechanics, vol.102, issue.1, pp.19-36, 2002.
DOI : 10.1016/S0377-0257(01)00125-2

F. Koran and J. M. Dealy, Wall slip of polyisobutylene: Interfacial and pressure effects, Journal of Rheology, vol.43, issue.5, pp.1291-1306, 1999.
DOI : 10.1122/1.551025

E. Achilleos, G. T. Georgiou, and S. G. Hatzikiriakos, Role of processing aids in the extrusion of molten polymers, Journal of Vinyl and Additive Technology, vol.44, issue.1, pp.7-24, 2002.
DOI : 10.1002/vnl.10340

M. Ansari, Y. W. Inn, A. M. Sukhadia, P. J. Deslauriers, and S. G. Hatzikiriakos, Wall slip of HDPEs: Molecular weight and molecular weight distribution effects, Journal of Rheology, vol.57, issue.3, pp.927-948, 2013.
DOI : 10.1122/1.4801758

C. Combeaud, Y. Demay, and B. Vergnes, Experimental study of the volume defects in polystyrene extrusion, Journal of Non-Newtonian Fluid Mechanics, vol.121, issue.2-3
DOI : 10.1016/j.jnnfm.2004.06.007
URL : https://hal.archives-ouvertes.fr/hal-00015351

R. S. Spencer and R. E. Dillon, The viscous flow of molten polystyrene, Journal of Colloid Science, vol.3, issue.2, pp.163-180, 1948.
DOI : 10.1016/0095-8522(48)90066-X

R. S. Spencer and R. E. Dillon, The viscous flow of molten polystyrene. II, Journal of Colloid Science, vol.4, issue.3, pp.241-255, 1949.
DOI : 10.1016/0095-8522(49)90007-0

J. P. Tordella, An instability in the flow of molten polymers, Rheologica Acta, vol.30, issue.No. 8, pp.216-221, 1958.
DOI : 10.1007/BF01968870

J. M. Piau, E. Kissi, N. Tremblay, and B. , Low Reynolds number flow visualization of linear and branched silicones upstream of orifice dies, Journal of Non-Newtonian Fluid Mechanics, vol.30, issue.2-3, pp.197-232, 1988.
DOI : 10.1016/0377-0257(88)85025-0

T. F. Ballenger and J. L. White, The development of the velocity field in polymer melts in a reservoir approaching a capillary die, Journal of Applied Polymer Science, vol.15, issue.8, pp.1949-1962, 1971.
DOI : 10.1002/app.1971.070150813

J. J. Baik and C. Tzoganakis, A study of extrudate distortion in controlled-rheology polypropylenes, Polymer Engineering & Science, vol.38, issue.2, pp.274-281, 1998.
DOI : 10.1002/pen.10188

C. Combeaud, Y. Demay, and B. Vergnes, Etude expérimentale du défaut hélicoïdal d'un polystyrène en écoulement, Rhéologie, vol.4, pp.50-57, 2003.

C. Combeaud, Etude des instabilités volumiques en extrusion de polystyrène et polypropylène, Thèse de Doctorat, 2004.

A. B. Metzner, E. L. Carley, and I. K. Park, Polymer melts: a study of steady-state flow, extrudate irregularities and normal stresses, Modern Plastics, p.133, 1960.

E. B. Bagley and H. P. Schreiber, Effect of Die Entry Geometry on Polymer Melt Fracture and Extrudate Distortion, Transactions of the Society of Rheology, vol.5, issue.1, pp.341-353, 1961.
DOI : 10.1122/1.548904

C. D. Han and R. A. Lamonte, A study of polymer melt flow instabilities in extrusion, Polymer Engineering and Science, vol.2, issue.5, pp.385-394, 1971.
DOI : 10.1002/pen.760110507

J. Vlachopoulos and M. Alam, Critcal stress and recoverable shear for polymer melt fracture, Polymer Engineering and Science, vol.6, issue.3, pp.184-192, 1972.
DOI : 10.1002/pen.760120305

X. Yang, H. Ishida, and S. Q. Wang, Wall slip and absence of interfacial flow instabilities in capillary flow of various polymer melts, Journal of Rheology, vol.42, issue.1, pp.63-80, 1998.
DOI : 10.1122/1.550890

H. Schott and W. S. Kaghan, Flow Irregularities in the Extrusion of Polyethylene Melts, Industrial & Engineering Chemistry, vol.51, issue.7, p.844, 1959.
DOI : 10.1021/ie50595a034

E. B. Bagley and A. M. Birks, Flow of Polyethylene into a Capillary, Journal of Applied Physics, vol.31, issue.3, p.556, 1960.
DOI : 10.1063/1.1735627

J. M. Piau, E. Kissi, N. Tremblay, and B. , Influence of upstream instabilities and wall slip on melt fracture and sharkskin phenomena during silicones extrusion through orifice dies, Journal of Non-Newtonian Fluid Mechanics, vol.34, issue.2, pp.145-180, 1990.
DOI : 10.1016/0377-0257(90)80016-S

J. L. White, Critique on flow patterns in polymer fluids at the entrance of a die and instabilities leading to extrudate distortion, Appl. Polym. Symp, vol.20, pp.155-174, 1973.

J. L. White and A. Kondo, Flow patterns in polyethylene and polystyrene melts during extrusion through a die entry region: measurement and interpretation, Journal of Non-Newtonian Fluid Mechanics, vol.3, issue.1, pp.41-64, 1977.
DOI : 10.1016/0377-0257(77)80011-6

M. T. Martyn, C. Nakason, and P. D. Coates, Flow visualisation of polymer melts in abrupt contraction extrusion dies: quantification of melt recirculation and flow patterns, Journal of Non-Newtonian Fluid Mechanics, vol.91, issue.2-3, pp.109-122, 2000.
DOI : 10.1016/S0377-0257(99)00107-X

Y. Goutille, J. C. Majesté, J. F. Tassin, and J. Guillet, Molecular structure and gross melt fracture triggering, Journal of Non-Newtonian Fluid Mechanics, vol.111, issue.2-3, pp.175-198, 2003.
DOI : 10.1016/S0377-0257(03)00054-5

S. Nigen, N. Kissi, J. M. Piau, and S. Sadun, Velocity field for polymer melts extrusion using particle image velocimetry, Journal of Non-Newtonian Fluid Mechanics, vol.112, issue.2-3, pp.177-202, 2003.
DOI : 10.1016/S0377-0257(03)00097-1

H. Kometani, H. Kitajima, T. Matsumura, T. Suga, and T. Kanai, Visualization of Flow Instabilities for High Density Polyethylene, International Polymer Processing, vol.21, issue.1, pp.32-40, 2006.
DOI : 10.3139/217.0057

C. Combeaud, B. Vergnes, A. Merten, D. Hertel, and H. Münstedt, Volume defects during extrusion of polystyrene investigated by flow induced birefringence and laser-Doppler velocimetry, Journal of Non-Newtonian Fluid Mechanics, vol.145, issue.2-3, pp.69-77, 2007.
DOI : 10.1016/j.jnnfm.2007.01.002
URL : https://hal.archives-ouvertes.fr/hal-00510574

R. Muller and B. Vergnes, Validity of the stress optical law and application of birefringence to polymer complex flows, 1996.
DOI : 10.1016/S0169-3107(96)80010-4

G. H. Mckinley, P. Pakdel, and A. Oztekin, Rheological and geometric scaling of purely elastic flow instabilities, Journal of Non-Newtonian Fluid Mechanics, vol.67, pp.19-47, 1996.
DOI : 10.1016/S0377-0257(96)01453-X

S. Kim and J. M. Dealy, Gross melt fracture of polyethylene. I: A criterion based on tensile stress, Polymer Engineering & Science, vol.25, issue.3, pp.482-494, 2002.
DOI : 10.1002/pen.10965

S. Kim and J. M. Dealy, Gross melt fracture of polyethylene. II: Effects of molecular structure, Polymer Engineering & Science, vol.27, issue.3, pp.495-503, 2002.
DOI : 10.1002/pen.10966

F. N. Cogswell, Converging flow of polymer melts in extrusion dies, Polymer Engineering and Science, vol.8, issue.1, pp.64-73, 1972.
DOI : 10.1002/pen.760120111

J. Perez-gonzalez, L. Perez-trejo, L. De-vargas, and O. Manero, Inlet instabilities in the capillary flow of polyethylene melts, Rheologica Acta, vol.20, issue.6, pp.677-685, 1997.
DOI : 10.1007/BF00367364

M. Meller, A. Luciani, A. Sarioglu, and J. A. Manson, Flow through a convergence. Part 1: Critical conditions for unstable flow, Polymer Engineering & Science, vol.91, issue.3, pp.611-633, 2002.
DOI : 10.1002/pen.10976

J. Den-doelder, R. Koopmans, M. Dees, and M. Mangnus, Pressure oscillations and periodic extrudate distortions of long-chain branched polyolefins, Journal of Rheology, vol.49, issue.1, pp.113-126, 2005.
DOI : 10.1122/1.1835335

E. B. Muliawan, S. G. Hatzikiriakos, and M. Sentmanat, Melt Fracture of Linear PE, International Polymer Processing, vol.20, issue.1, pp.60-67, 2005.
DOI : 10.3139/217.1862

Y. Goutille and J. Guillet, Gross melt fracture mitigation in converging dies: A singular behavior due to polymer wall slip, Polymer Engineering & Science, vol.44, issue.5, pp.1123-1137, 2003.
DOI : 10.1002/pen.10095

Y. Goutille and J. Guillet, Disentanglement of polymer melts flowing through porous medium before entering a capillary die, Journal of Rheology, vol.46, issue.6, pp.1307-1323, 2002.
DOI : 10.1122/1.1501926

E. E. Rosenbaum, S. K. Randa, S. G. Hatzikiriakos, C. W. Stewart, D. L. Henry et al., Boron nitride as a processing aid for the extrusion of polyolefins and fluoropolymers, Polymer Engineering & Science, vol.22, issue.1, pp.179-190, 2000.
DOI : 10.1002/pen.11151

I. B. Kazatchkov, F. Yip, and S. G. Hatzikiriakos, The effect of boron nitride on the rheology and processing of polyolefins, Rheologica Acta, vol.39, issue.6, pp.583-594, 2000.
DOI : 10.1007/s003970000113

M. Seth, S. G. Hatzikiriakos, and T. M. Clere, Gross melt fracture elimination: The role of surface energy of boron nitride powders, Polymer Engineering & Science, vol.61, issue.4, pp.743-752, 2002.
DOI : 10.1002/pen.10986

M. Sentmanat and S. G. Hatzikiriakos, Mechanism of gross melt fracture elimination in the extrusion of polyethylenes in the presence of boron nitride, Rheologica Acta, vol.16, issue.6, pp.624-633, 2004.
DOI : 10.1007/s00397-004-0359-6