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Wetting transitions of asymmetric binary polymer mixtures

✍ Scribed by Chen, Zheng Yu ;Noolandi, Jaan

Publisher
Wiley (John Wiley & Sons)
Year
1992
Weight
211 KB
Volume
1
Category
Article
ISSN
1018-5054

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✦ Synopsis

Abstract

We examine the effect on surface‐wetting phase transitions in polymer mixtures when the degrees of polymerization of the two components are different. It has been demonstrated by Schmidt and Binder (J. Phys. (Paris) 46, 1631 (1985)) that in a symmetric polymer mixture a second‐order wetting transition occurs if the wall‐polymer interaction f(Ο•~0~) has a negative curvature fβ€³(Ο•~0~), where Ο•~0~ is the surface volume fraction of the polymer component preferred by the wall. We found that in an asymmetric mixture this is not necessarily the case.

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