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Influence of the elasticity ratio on the point of phase inversion in an immiscible polymer blend

Abstract : At a shear rate of 10 s−1, a flow-induced phase inversion has been observed in-situ by optical microscopy on a blend of polydimethylsiloxane with solution of 50% of hydroxypropylcellulose in water for a range of concentrations. By increasing the shear rate up to 30 s−1, the elasticity ratio of the components can be changed without changing the viscosity ratio. The resultant steady-state morphology is not influenced by the variation of the elasticity ratio, contrary to a theoretical model.
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Submitted on : Friday, March 4, 2011 - 5:03:47 PM
Last modification on : Thursday, September 24, 2020 - 5:22:55 PM

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Marianne Astruc, Patrick Navard. Influence of the elasticity ratio on the point of phase inversion in an immiscible polymer blend. Macromolecular Symposia, Wiley-VCH Verlag, 2000, 149 (1), pp.Pages 81-86. ⟨10.1002/1521-3900(200001)149:1<81::AID-MASY81>3.0.CO;2-9⟩. ⟨hal-00573812⟩

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