SYNTHESIS OF A NEW KIND OF RIGID SIDE CHAIN TYPE LIQUID CRYSTAL POLYMERS

LI Zi-fa; GUO Yin-zhong; ZHANG Chun-xiao; ZHOU Qi-feng

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SYNTHESIS OF A NEW KIND OF RIGID SIDE CHAIN TYPE LIQUID CRYSTAL POLYMERS

Research Article | 更新时间：2021-03-19

- SYNTHESIS OF A NEW KIND OF RIGID SIDE CHAIN TYPE LIQUID CRYSTAL POLYMERS
- Acta Polymerica Sinica Issue 4, Pages: 414-419(1995)
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- Published：20 August 1995，
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LI Zi-fa, GUO Yin-zhong, ZHANG Chun-xiao, ZHOU Qi-feng. SYNTHESIS OF A NEW KIND OF RIGID SIDE CHAIN TYPE LIQUID CRYSTAL POLYMERS. [J]. Acta Polymerica Sinica (4):414-419(1995)
DOI：

LI Zi-fa, GUO Yin-zhong, ZHANG Chun-xiao, ZHOU Qi-feng. SYNTHESIS OF A NEW KIND OF RIGID SIDE CHAIN TYPE LIQUID CRYSTAL POLYMERS. [J]. Acta Polymerica Sinica (4):414-419(1995) DOI：

摘要

以自由基聚合方法，合成了一系列含有三个苯环通过酯键相联的液晶性单体及其聚合物．在这类新的液晶高分子中，刚性液晶基元不通过柔性间隔基而直接竖挂在聚甲基丙烯酸酯大分子主链上．这些高分子有很高的玻璃化转变温度，表明其分子链刚性较大，因而代表了一类新的刚性链侧链型液晶高分子．它们的液晶行为用ＤＳＣ、偏光显微镜和Ｘ－光衍射进行了表征．发现所有单体和聚合物均为向列型热致性液晶．

Abstract

series of mesogenic monomers and polymers with three benzene rings linked by ester bond were synthesized for the first time by means of radical polymerization. In this type of liquid crystal polymers

rigid mesogens are directly fixed on the main chain backbone of polymethacrylic ester not by flexible spacer. Their glass transition temperatures were very high

indicating showed that these molecular chain have significant rigidity. The liquid crystalline behavior of the polymers was characterized by DSC

pelarized optical microscopy and X-ray diffraction. It was found that all the monomers and polymers were nematic.

关键词

刚性链侧链型液晶高分子液晶性单体4－［4’－（对烷氧基－苯甲酰氧基）－苯甲酰氧基］－苯基－甲基丙烯酸醋

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STUDY OF THE LIQUID CRYSTAL COPOLYMERS WITH THE MESOGENIC UNITS LATERALLY ATTACHED DIRECTLY TO THE MAIN CHAIN BACKBONE

STUDY OF THE LIQUID CRYSTAL COPOLYMERS WITH THE MESOGEN UNITS VERTICALLY ATTACHED DIRECTLY TO THE MAIN CHAIN BACKBONE

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