| 侧链聚硅氧烷液晶高分子的合成与表征及应用研究 |
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| 引用本文： | 朱鸣岗,张其震,侯昭升,唐新德,李桂英.侧链聚硅氧烷液晶高分子的合成与表征及应用研究[J].高分子学报,2003(2):298-301. |
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| 作者姓名： | 朱鸣岗 张其震 侯昭升 唐新德 李桂英 |
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| 作者单位： | 1. 山东大学化学与化工学院,济南,250100;山东交通学院,济南,250023
2. 山东大学化学与化工学院,济南,250100 |
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| 基金项目： | 国家自然科学基金资助项目 (基金号 2 98740 2 0和 5 95 73 0 2 9) |
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| 摘 要： | 液晶高分子既具有独特的液晶性 ,又具有高分子的良好材料性能 ,引起了人们的广泛注意1～ 9] .侧链液晶高分子大多可以作为功能材料 ,对它们的研究有很大的理论与现实意义 .以往报道的此类化合物的介晶基元大多是通过烷氧基与间隔基相连10 ] .我们以催化活性很高的铂络和物为催化剂 ,通过硅氢加成反应制备了间隔基与介晶基元通过酰氧基相连的两种侧链聚硅氧烷液晶高分子 ,并对它们的性质进行了初步表征 .发现它们具有很好的液晶性 .已有研究表明侧链聚硅氧烷液晶在气相色谱分离结构近似的物质方面 ,具有易涂渍、选择性及热稳定性优于低分子…
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| 关 键 词： | 侧链聚硅氧烷液晶高分子 热致液晶 近晶相 胆甾相 气相色谱 |
| 修稿时间： | 2002年6月20日 |
SYNTHESIS AND CHARACTERIZATION OF SIDE-CHAIN LIQUID CRYSTAL POLYSILOXANES AND STUDIES ON THEIR APPLICATION |
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| ZHU Minggang\ ,ZHANG Qizhen\,HOU Zhaosheng\,TANG Xinde\,LI Guiying\.SYNTHESIS AND CHARACTERIZATION OF SIDE-CHAIN LIQUID CRYSTAL POLYSILOXANES AND STUDIES ON THEIR APPLICATION[J].Acta Polymerica Sinica,2003(2):298-301. |
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| Authors: | ZHU Minggang\ ZHANG Qizhen\ HOU Zhaosheng\ TANG Xinde\ LI Guiying\ |
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| Affiliation: | ZHU Minggang\+ 1,2,ZHANG Qizhen\+1,HOU Zhaosheng\+1,TANG Xinde\+1,LI Guiying\+1 |
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| Abstract: | Two liquid crystal monomers,cholesteryl 10\|undecylenate (M1), and cholesteryl 4\|(10\|undecylenoyloxy)\|benzoate(M2),and their respective side\|chain liquid crystal homopolymers (P1,P2) were synthesized.Their liquid crystal properties were characterized by POM and DSC method.M1 could form sematic liquid crystal and cholesteric liquid crystal,while M2\|only cholesteric liquid crystal.The Polymers,P1 and P2,exhibited sematic liquid crystal behavior.The results also indicated that,because of the structure of 1,4\|COO\|Ar\|COO\|in M2 and P2,the isotropization tempretures of the liquid crystalline M2 and P2 were higher than those of M1 and P1,respectively,and the temprature range of LC phases of M2 was also wider than that of M1.Homopolymer P1,was applied in the capillary column gas chromatography as a novel stationary phase and showed ideal separating selectivity.A mixture of anthracene,phenanthrene and acenaphene and a mixture of dichlorobenzene isomers were well separated. |
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| Keywords: | Liquid crystalline side\|chain polysiloxanes Thermotropic liquid crystal Sematic phase Cholesteric phase Capillary gas chromatography |
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