Role of liquid crystallinity of the photo-crosslinkable polymer film in the photo-alignment of mesoporous silica

被引：4
作者：
Fukumoto, Haruhiko
Nagano, Shusaku
Kawatsuki, Nobuhiro
Seki, Takahiro [1 ]
机构：
[1] Nagoya Univ, Grad Sch Engn, Dept Mol Design & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan
[2] Univ Hyogo, Grad Sch Educ, Dept Mat Sci & Chem, Himeji, Hyogo 6712201, Japan
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2006年 / 284卷
关键词：
mesoporous silica thin film; photo-crosslinkable polymer film; linearly polarized UV light; photo-alignment;
D O I：
10.1016/j.colsurfa.2005.10.072
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A new photo-aligning technique for mesochannels of a silica thin film transferred from a liquid crystalline photo-crosslinkable polymer (poly[6-(4-(4'-methoxycinnamoyloxy)biphenyloxy)hexylmethacrylate] (PMBCi)) film has been developed in our group. Herein, we also adopt a non-liquid crystalline photo-crosslinkable polymer, poly(vinyl cinnamate) (PVCi), to evaluate the role of liquid crystallinity for inducing the alignment of mesochannels of the silica films. Optical anisotropy of the thin films of the two photo-crosslinkable polymers (PVCi and PMBCi) was induced by irradiation with linearly polarized UV (LPUV) light. The photo-induced anisotropy of both films were sufficient for alignment of nematic liquid crystal molecules, however, mesoporous silica films were aligned only on the liquid crystalline PMBCi film as revealed by in-plane X-ray diffraction (XRD) measurements and optical microscopy. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：309 / 314
页数：6
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