| 液晶基元直接横挂于主链上的液晶共聚物的合成与研究 |
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| 引用本文： | 李自法,周其凤.液晶基元直接横挂于主链上的液晶共聚物的合成与研究[J].高分子材料科学与工程,1995,11(2):36-40. |
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| 作者姓名： | 李自法 周其凤 |
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| 作者单位： | 郑州大学材料工程系，北京大学化学系 |
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| 基金项目： | NNSFC和“863”项目 |
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| 摘 要： | 以含液晶基元的单体２，５－双（４－甲氧基苯甲酰氧基）苯乙与苯乙烯通过自由基共聚合反应，首次合成了一系列含液晶性和非液晶性两种序列结构的共聚物。采用ＤＳＣ、偏光显微镜和Ｘ衍射方法研究了共聚物的液晶行为，发现单体和共聚物（只有ＣＰ－５和ＣＰ－６）有很好的热致液晶性。随共聚物中介晶单体单元含量的增加，共聚物玻璃化转变温度Ｔ和热分解温度Ｔ呈规律变化。
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| 关 键 词： | 液晶离子 甲氧基 苯甲酰氧基 苯乙烯 |
SYNTHESIS AND STUDIES OF THE LIQUID CRYSTAL COPOLYMERS WITH THE MESOGENIC UNITS LATERALLY ATTACHED DIRECTLY TO THE MAIN CHAIN BACKBONE |
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| Li Zifa,Zhang Chunxiao,Zhang Shuyuan.SYNTHESIS AND STUDIES OF THE LIQUID CRYSTAL COPOLYMERS WITH THE MESOGENIC UNITS LATERALLY ATTACHED DIRECTLY TO THE MAIN CHAIN BACKBONE[J].Polymer Materials Science & Engineering,1995,11(2):36-40. |
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| Authors: | Li Zifa Zhang Chunxiao Zhang Shuyuan |
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| Abstract: | In this paper,a series of liquid crystalline and non-liquid-crystalline sequential copolymers were synthesized for the first time by radical copolymerization of the mesogenic monomer 2,5-bis(4-methoxybenzoyl) styrene and styrene.The liquid crystalline behavior of the copolymers was studied by DSC, polarized optical microscopy and X-ray diffraction.It was found that the monomer and copolymers of CP-6 showed very good thermotropic liquid crystallinity. The glass transition temperature Tg and decomposition temperature Td of copolymers changed regularly with the increase of the contents of mesogenic monomer unit in the copolymers. |
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| Keywords: | s:liquid crystalline polymer mesogenic monomer 2 5-bis(4-methoxybenzoyl)styrene |
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