Alternation of Side-Chain Mesogen Orientation Caused by the Backbone Structure in Liquid-Crystalline Polymer Thin Films

被引：27
|
作者：
Tanaka, Daisuke [1 ]
Nagashima, Yuki [1 ]
Hara, Mitsuo [1 ]
Nagano, Shusaku [2 ]
Seki, Takahiro [1 ]
机构：
[1] Nagoya Univ, Grad Sch Engn, Dept Mol Design & Engn, Nagoya, Aichi 4648603, Japan
[2] Nagoya Univ, Nagoya Univ Venture Business Lab, Nagoya, Aichi 4648603, Japan
来源：
LANGMUIR | 2015年 / 31卷 / 42期
基金：
日本科学技术振兴机构;
关键词：
FREE-SURFACE; CONFORMATION; SEGREGATION; ALIGNMENT; RIGIDITY;
D O I：
10.1021/acs.langmuir.5b02442
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In side-chain-type liquid-crystalline (LC) polymers, the main chain rigidity significantly affects the LC structure and properties. We show herein a relevant new effect regarding the orientation of side-chain mesogenic groups of LC polymers in a thin-film state. A subtle change in the main chain structure, i.e., polyacrylate and polymethacrylate, leads to a clear alternation of mesogens in the homeotropic and planar modes, respectively. This orientational discrimination is triggered from the free surface region (film air interface) as revealed by surface micropatterning via inkjet printing.
引用
收藏
页码：11379 / 11383
页数：5
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