Microphase separation in cross-linked polymer blends
نویسندگان
چکیده
منابع مشابه
Glassy states and microphase separation in cross-linked homopolymer blends
– The physical properties of blends of distinct homopolymers, cross-linked beyond the gelation point, are addressed via a Landau approach involving a pair of coupled order-parameter fields: one describing vulcanisation, the other describing local phase separation. Thermal concentration fluctuations, present at the time of cross-linking, are frozen in by cross-linking, and the structure of the r...
متن کاملPhase and microphase separation in polymer blends
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...
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We investigate the behaviour of randomly cross-linked (co)polymer blends using a combination of replica theory and large-scale molecular dynamics simulations. In particular, we derive the analogue of the random phase approximation for systems with quenched disorder and show how the required correlation functions can be calculated efficiently. By post-processing simulation data for homopolymer n...
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ژورنال
عنوان ژورنال: The European Physical Journal E
سال: 2009
ISSN: 1292-8941,1292-895X
DOI: 10.1140/epje/i2008-10420-6