THEORY OF ISOTROPIC-NEMATIC PHASE-TRANSITION IN NEMATIC BLOCK-COPOLYMERS

被引：3
|
作者：
YURASOVA, TA [1 ]
MCLEISH, TCB [1 ]
机构：
[1] UNIV SHEFFIELD,DEPT PHYS,SHEFFIELD S3 7RH,S YORKSHIRE,ENGLAND
来源：
POLYMER | 1993年 / 34卷 / 18期
关键词：
BLOCK COPOLYMERS; PHASE TRANSITION; NEMATIC STRUCTURE; MODELING; ANISOTROPY;
D O I：
10.1016/0032-3861(93)90500-A
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A model is suggested to treat nematic block copolymers with mesogenic groups in the main chains. It is based on a mean-field approach taking into account attractive interactions between chain segments, and allows the description of chains with varying flexibility (with somewhat flexible mesogens). The free energy is calculated; it yields the behaviour of the temperature-dependent nematic-isotropic phase transition in the system for various sets of parameters (concentration of the two components and constants of anisotropic interaction).
引用
收藏
页码：3774 / 3777
页数：4
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