Reaction-induced phase separation dynamics: A polymer in a liquid crystal solvent

被引：70
|
作者：
Nephew, JB [1 ]
Nihei, TC [1 ]
Carter, SA [1 ]
机构：
[1] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA
来源：
PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 15期
关键词：
D O I：
10.1103/PhysRevLett.80.3276
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The dynamics of addition polymerization-induced phase separation in a liquid crystal solvent is examined via confocal microscopy in systems where the final morphology consists of nematic liquid crystal domains suspended in a cross-linked polymer matrix. For low polymer concentrations, we observe unusually rapid hydrodynamics and coalescence during phase separation that determine the final composite morphology. This hypercoalescence can result from polymerization-induced changes of the solubility of the polymer matrix in the liquid crystal solvent.
引用
收藏
页码：3276 / 3279
页数：4
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