MODE-COUPLING THEORY OF DIFFUSION IN BLOCK-COPOLYMER MELTS - INFLUENCE OF CONCENTRATION FLUCTUATIONS

被引：27
作者：
TANG, H
SCHWEIZER, KS
机构：
[1] UNIV ILLINOIS, DEPT CHEM, URBANA, IL 61801 USA
[2] UNIV ILLINOIS, MAT RES LAB, URBANA, IL 61801 USA
来源：
JOURNAL OF CHEMICAL PHYSICS | 1995年 / 103卷 / 14期
关键词：
D O I：
10.1063/1.470410
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The polymer mode-coupling theory is extended to describe diffusion in block copolymer melts. Concentration fluctuations are shown to significantly slow down the diffusion near or below the order-disorder transition temperature. These effects are stronger for longer tracers, and for homopolymer tracers compared with block copolymer tracers. Quantitative agreement is obtained between our theory and recent experiments. (C) 1995 American Institute of Physics.
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收藏
页码：6296 / 6299
页数：4
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