Vertical Alignment of Liquid Crystal Induced by Novel Soluble Polyimides

HU Xiao-yang; FANG Yu-qing; LI Yan-na; WANG Ying-han

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Vertical Alignment of Liquid Crystal Induced by Novel Soluble Polyimides

Material Physics & Chemistry | 更新时间：2020-08-12

- Vertical Alignment of Liquid Crystal Induced by Novel Soluble Polyimides
- Chinese Journal of Liquid Crystals and Displays Vol. 25, Issue 2, Pages: 192-195(2010)
- 作者机构：
  
  四川大学高分子科学与工程学院高分子材料工程国家重点实验室,四川成都,610065
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ323.7;TN141.9
- Received：19 August 2009，
  
  Revised：02 January 1900，
  
  Published Online：30 April 2010，
  
  Published：30 April 2010
- 稿件说明：
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胡晓阳;房玉庆;栗彦娜;汪映寒. 新型可溶性聚酰亚胺液晶垂直取向剂的合成[J]. 液晶与显示, 2010,25(2): 192-195

HU Xiao-yang;FANG Yu-qing;LI Yan-na;WANG Ying-han. Vertical Alignment of Liquid Crystal Induced by Novel Soluble Polyimides[J]. 液晶与显示, 2010,25(2): 192-195
胡晓阳;房玉庆;栗彦娜;汪映寒. 新型可溶性聚酰亚胺液晶垂直取向剂的合成[J]. 液晶与显示, 2010,25(2): 192-195 DOI：

HU Xiao-yang;FANG Yu-qing;LI Yan-na;WANG Ying-han. Vertical Alignment of Liquid Crystal Induced by Novel Soluble Polyimides[J]. 液晶与显示, 2010,25(2): 192-195 DOI：

摘要

利用4-十二烷氧基联苯酚-3

5-二氨基苯甲酸酯、3

3'-二甲基-4

4'-亚甲基二苯胺(DMMDA)按不同比例和4

4-氧双邻苯二甲酸酐(ODPA)通过一步法共聚合成一系列聚酰亚胺

该聚酰亚胺在N-甲基吡咯烷酮(NMP)、N

N-二甲基甲酰胺(DMF)、N

N-二甲基乙酰胺(DMAC)、二甲基亚砜(DMSO)以及氯仿(TCM)等溶剂中显示出良好的溶解性

并且显示出优异的垂直取向性能

即使摩擦以后所引起的预倾角也未出现显著的下降。

Abstract

A series of polyimides with different side chain content had been copolymerized from 4-dodecyloxy-biphenyl-3'

5'- diaminobenzoate

3'-dimethyl-4

4'-methyl-enedianiline (DMMDA) and 4

4'-oxydi(phthalic anhydride) (ODPA) via one-step method. The synthesized polyimides also possessed solubility in N-methyl-2-pyrrolidone (NMP)

N-dimethylformamide (DMF)

N-Dimethylacetamide (DMAC)

dimethylsulfoxide (DMSO) and trichloromethane (TCM). Meanwhile

uniform and stable vertical alignment of liquid crystal was induced by the polyimides films

and even after the rubbing process

the pretilt angles of liquid crystal show good stability.

关键词

Keywords

references

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. Hishi Y, Ishida M, Kakomoto M, et al. Preparation and properties of novel soluble aromatic polyimides from 4,4 -diaminotriphenylamine and aromatic tetracarboxylic dianhydrides[J]. J. Polym. Sci. Polym. Chem., 1992, 30(6):1027-1035.

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. Imai Y. Synthesis of Polyamide-imides [M]//Ghosh M K,Mittal K L. Polyimides Fundamentals and Applications,New York:Dekker, 1996:49.

. Liu Z J, Yu F F, Zhang Q, et al. Preparation and characterization of a novel PI liquid crystal vertical alignment layer [J]. European Polymer Journal, 2008, 44(8):2718-2727.

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. 丁孟贤,何天白. 聚酰亚胺新型材料 [M] .北京:化学工业出版社,1998:142.

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