Synthesis and Photo-Alignment Properties of Novel Polymer with Terephthalaldehyde

被引：1

作者：

Lee, Sang Wook ^{[1
]}

Lim, Jin Youb ^{[1
]}

Park, Sang Yong ^{[1
]}

Kim, Hyun Kyung ^{[2
]}

Shin, Dong Myung ^{[1
]}

机构：

[1] Hongik Univ, Dept Chem Engn, Seoul 121791, South Korea

[2] Korea Inst Curriculum & Evaluat, Jeongdong Bldg 21-15, Seoul 100784, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2016年 / 16卷 / 08期

关键词：

Oxime Ester; Photo-Decomposition; Photo-Alignment; Polyimide; LIQUID-CRYSTAL ALIGNMENT; POLYIMIDES;

D O I：

10.1166/jnn.2016.12515

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

To improve irradiation time and the effectiveness photo-alignment, dual decomposition mechanisms including photo and thermal were investigated. For more aggressive photo-decomposition of the polymer, the photoreactions employing triplet mechanism and the double fragmentation reactions were carried out. The polymer was synthesized from terephthalaldehyde followed by the condensation reaction with 1,2,4,5-benzenetetracarboxylic anhydride. The reactive part of the polymer(1) was oxime ester, which is labile to photo-irradiation and high temperature. The polymer(1) was mixed with photo-inert polyimide with various ratio. The polymer synthesis was analyzed using the Fourier transform infrared (FT-IR) spectroscopy and GPC, H-1-NMR spectra and etc. We obtained the polar dichroic ratios and evaluated alignment characteristics of liquid crystal employing polymer(1) as a photo-reactive moiety.

引用

页码：8819 / 8822

页数：4

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