SYNTHESIS AND LIQUID CRYSTALLINE BEHAVIOR OF POLYSILOXANE CONTAINING AZOBENZENE SIDE GROUPS

HOU Zhaosheng; ZHANG Qizhen; WANG Daqing; ZHU Minggang; WANG Bingbing

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SYNTHESIS AND LIQUID CRYSTALLINE BEHAVIOR OF POLYSILOXANE CONTAINING AZOBENZENE SIDE GROUPS

Research Article | 更新时间：2021-03-19

- SYNTHESIS AND LIQUID CRYSTALLINE BEHAVIOR OF POLYSILOXANE CONTAINING AZOBENZENE SIDE GROUPS
- Acta Polymerica Sinica Issue 6, Pages: 742-745(2002)
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- Published：20 December 2002，
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HOU Zhaosheng, ZHANG Qizhen, WANG Daqing, ZHU Minggang, WANG Bingbing. SYNTHESIS AND LIQUID CRYSTALLINE BEHAVIOR OF POLYSILOXANE CONTAINING AZOBENZENE SIDE GROUPS. [J]. Acta Polymerica Sinica (6):742-745(2002)
DOI：

HOU Zhaosheng, ZHANG Qizhen, WANG Daqing, ZHU Minggang, WANG Bingbing. SYNTHESIS AND LIQUID CRYSTALLINE BEHAVIOR OF POLYSILOXANE CONTAINING AZOBENZENE SIDE GROUPS. [J]. Acta Polymerica Sinica (6):742-745(2002) DOI：

摘要

以苯酚、十一烯酸、正溴己烷、对硝基苯酚和二氯亚砜为主要原料

通过取代、还原、重氮化和偶合等反应

合成了一种新的液晶单体 4-己氧基-4′-十一烯-[10]-酰氧基偶氮苯

并与聚 (甲基氢硅氧烷 )通过硅氢加成生成一种新的高分子液晶 .通过1H-NMR和IR对单体和聚合物的结构进行了表征

并证实了聚合物的硅氢化程度近于完全 .通过DSC和热台偏光显微镜(POM)对单体和聚合物的液晶行为进行了研究

证明了都具有液晶性.

Abstract

A new monomer

4-hexanoxyl-4′-undecylene-[10]-acyloxyazobenzene was synthesized using the main materials：phenol

underlenic acid

1-bromo-n-hexane

p-nitrophenol

thionyl chloride

by the substitution

reduction

couping and diazotization methods．A new polymer was prepared by hydrosilation reaction of poly (methylhy-drosiloxane) with the monomer．The chemical structure of the monomer and the polymer was confirmed by 1H-NMR and IR measurements and the full hydrosilation reaction of the polymer was confirmed．The liquid crystalline properties of the monomer and the polymer were investigated by using different scanning calorimetry (DSC) and polarized optical microscopy(POM)

and their liquid crystallinity was evidenced．

关键词

聚硅氧烷液晶近晶相偶氮苯

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