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庚烯-1单体单元对胆甾型侧链液晶共聚砜热转变温度的调节
引用本文:吴奕光 司徒丘山. 庚烯-1单体单元对胆甾型侧链液晶共聚砜热转变温度的调节[J]. 高分子学报, 1997, 0(6): 690-694
作者姓名:吴奕光 司徒丘山
作者单位:[1]深圳大学应用化学系 [2]香港理工大学
基金项目:香港大学及理工教育资助委员会资助
摘    要:合成并用红外光谱法、核磁共振法和高效凝胶渗透色谱法表征了胆甾(烷)醇十一碳烯酸酯分别与庚烯 1、二氧化硫进行自由基共聚合得到的一系列不同组成的三元胆甾型侧链液晶共聚砜,用温控式偏振光显微镜观测了产物的液晶性能.结果表明:随庚烯 1单体单元组份含量的增加,该三元共聚砜的液晶相转变温度均降低,采用庚烯 1单体参与共聚的方法可以有效地调节胆甾型侧链液晶共聚砜的热转变温度.

关 键 词:庚烯-1,侧链液晶高分子,聚砜,热转变温度

THERMAL TRANSITION CONTROL OF CHOLESTERIC LIQUID CRYSTALLINE SIDE CHAIN TERPOLY(OLEFIN SULPHONE)S CONTAINING 1 HEPTENE MOIETIES
WU Yiguang. THERMAL TRANSITION CONTROL OF CHOLESTERIC LIQUID CRYSTALLINE SIDE CHAIN TERPOLY(OLEFIN SULPHONE)S CONTAINING 1 HEPTENE MOIETIES[J]. Acta Polymerica Sinica, 1997, 0(6): 690-694
Authors:WU Yiguang
Abstract:A series of cholesteric liquid crystalline side chain terpoly(olefin sulphone)s with different composition have been prepared from cholesteryl (or/and cholestanyl) 10 undecenoate, heptene 1 and sulphur dioxide. The structures of these terpolymers have been characterised with FTIR, 1H NMR, HPGPC and LC properties measured by polarising microscope. The experimental results showed that each series of terpolymers are significantly lowered as the proportion of heptene 1 residues increases within the polymeric mass.
Keywords:Heptene 1   Liquid crystalline side chain polymer   Polysulphone   Thermal transition temperature  
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