Synthesis and Characterization of a Liquid Crystalline Poly(methyl)- acrylate Containing Different Flexible Space

Li-ping WU; Ke-yu SHI; Peng ZHANG; Shang-jin HE; Zong-jie DU; Bao-long ZHANG

doi:10.14028/j.cnki.1003-3726.2005.05.016

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Synthesis and Characterization of a Liquid Crystalline Poly(methyl)- acrylate Containing Different Flexible Space

更新时间：2022-09-18

- Synthesis and Characterization of a Liquid Crystalline Poly(methyl)- acrylate Containing Different Flexible Space
- Polymer Bulletin Vol. 18, Issue 5, Pages: 114-121(2005)
- 作者机构：
  
  南开大学化学学院化学系，天津　300071
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2005.05.016
  CLC：
- Published：2005-10，
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Li-ping WU, Ke-yu SHI, Peng ZHANG, Shang-jin HE, Zong-jie DU, Bao-long ZHANG. Synthesis and Characterization of a Liquid Crystalline Poly(methyl)- acrylate Containing Different Flexible Space. [J]. Polymer Bulletin 18(5):114-121(2005)
DOI：

Li-ping WU, Ke-yu SHI, Peng ZHANG, Shang-jin HE, Zong-jie DU, Bao-long ZHANG. Synthesis and Characterization of a Liquid Crystalline Poly(methyl)- acrylate Containing Different Flexible Space. [J]. Polymer Bulletin 18(5):114-121(2005) DOI： 10.14028/j.cnki.1003-3726.2005.05.016.

摘要

通过改变侧链中柔性间隔基的长度，合成了一系列含有两个手性中心的侧链液晶（甲基）丙烯酸酯类聚合物。红外、核磁和GPC 表征各中间体、单体及聚合物的结构和分子量。通过DSC和热台偏光显微镜系统地研究了单体和聚合物的液晶态织构。结果表明，含有六个碳的柔性间隔基的丙烯酸酯类聚合物表现为近晶

和手性近晶（

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）液晶相。

Abstract

A serial of novel liquid crystalline polymers containing rigid core

flexible spacer and (2S

3S)-4′-(2- chloro-3-methyl pentanoyloxy)-4-hexyloxybiphenyl in side chain were prepared.The intermediates and monomers were characterized by

H-NMR and the polymers were characterized by FTIR.Relative molecular weights of the polymers were characterized by GPC.The liquid-crystal behavior of monomers and corresponding polymers were investigated by differential scanning calorimetry (DSC) and thermal polarized optical microscopy (POM).The result showed that chiral acrylate monomer (P6ACl)exhibited smectic A(S

) and smectic B(S

) liquid crystalline phases and the corresponding polymer (PP6ACl)exhibited smectic A (S

) and chiral smectic C

(

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) liquid crystalline phases.

关键词

手性液晶高分子液晶织构相转变

Keywords

Liquid crystal texturePhase transitionChiral polyacrylate

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