Effect of network elasticity on nematic liquid crystal/crosslinked polymer phase diagram

被引：0
|
作者：
Nwabunma, D [1 ]
Kyu, T [1 ]
Pogue, RT [1 ]
Bunning, TJ [1 ]
机构：
[1] Univ Akron, Inst Polymer Engn, Akron, OH 44325 USA
来源：
LIQUID CRYSTAL MATERIALS AND DEVICES | 1999年 / 559卷
关键词：
D O I：
10.1557/PROC-559-117
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The influence of elasticity on the phase behavior of a mixture of nematic liquid crystal (LC) and in-situ cross-linked polymer has been investigated. Unlike the phase diagram of the LC/pre-cured polymer, the experimental diagram of LC/cross-linked polymer phase supported by theoretical calculation showed no critical point. Instead, the binodal curve exhibits an upward asymptotic behavior as the LC volume fraction approaches unity due to domination arising from network elasticity, particularly at high LC volume fraction. An examination of the effect of cross-links segment length and network functionality on the phase diagram of LC/cross-linked polymer showed that the segment length between cross-links exerts a greater influence.
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页码：117 / 122
页数：6
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