CONCENTRATION FLUCTUATION EFFECTS ON DISORDER-ORDER TRANSITIONS IN BLOCK COPOLYMER MELTS

被引：137

作者：

MAYES, AM ^{[1
]}

DELACRUZ, MO ^{[1
]}

机构：

[1] NORTHWESTERN UNIV,DEPT MAT SCI & ENGN,EVANSTON,IL 60208

来源：

JOURNAL OF CHEMICAL PHYSICS | 1991年 / 95卷 / 06期

关键词：

D O I：

10.1063/1.461736

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：

We study transitions to periodic structures in block copolymers melts, including concentration fluctuations self-consistently in the analysis. Phase diagrams are constructed for diblock and triblock copolymers of finite molecular weight. The concentration fluctuations increase the stability of the isotropic state, and induce a shift in k*, the wave vector of maximum scattered intensity, to lower values as the transition is approached. We calculate the shift in k* near the transition, and obtain the anisotropic scattering function in the ordered state.

引用

页码：4670 / 4677

页数：8

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