Viscoelastic properties of homogeneous block copolymer/homopolymer blends near microphase and macrophase separation transitions

Document Type

Conference Proceeding

Publication Date

10-14-2003

Abstract

We studied the anomalous effect of critical composition fluctuations on the viscoelastic properties of block copolymer/ selective homopolymer blends near the microphase and macrophase separation transition point under shear flow. The anisotropy and suppression of composition fluctuations caused by the applied flow field affect strongly the dynamic modulii and viscosity of the blends and render substantial difference compared to those of single block copolymer melt or homopolymer blends. The theoretical derivations were carried out by solving a simplified Langevin equation used by Onuki and Kawasaki with a mean-field approach.

Identifier

0141728447 (Scopus)

Publication Title

Annual Technical Conference ANTEC Conference Proceedings

First Page

1500

Last Page

1502

Volume

2

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