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
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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