Numéro
J. Phys. IV France
Volume 03, Numéro C1, Mai 1993
COMPLEX LIQUID SYSTEMS
Page(s) C1-211 - C1-223
DOI http://dx.doi.org/10.1051/jp4:1993118
COMPLEX LIQUID SYSTEMS

J. Phys. IV France 03 (1993) C1-211-C1-223

DOI: 10.1051/jp4:1993118

Phase and microphase separation in polymer blends

M. DAOUD

Laboratoire Léon Brillouin, CEA/CNRS, CEN Saclay, 91191 Gif-sur-Yvette cedex, France


Abstract
When two different polymers are mixed, they usually demix because of the slight repulsive interaction that exists between their monomers. This is general and may be related to phase separation in two component mixtures. When the same polymer blend is cross-linked in the one phase region, elastic forces develop and do not let this to occur. There results a microphase separation, with coexistence of regions of finite extent and different compositions. We discuss these phenomena as well as the kinetics of the decomposition.



© EDP Sciences 1993