含偶氮苯生色团的聚醚的合成与热致液晶性质
Synthesis and Thermotropic Liquid Crystalline Properties of Two Polyethers Containing Azobenzene Groups
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摘要: β－氯乙基缩水甘油醚（ＧＣＥ）和ＧＣＥ／羟丁基乙烯基醚（ＨＢＶＥ）分别通过阳离子聚合、光引发共聚合，获得两种聚醚，然后再分别与４－硝基－４’－羟基偶氦苯（ＮＨＡ）反应，制备了两种侧链含偶氦苯生色团的液晶聚合物（ＰＡＥＧ、ＰＡＶ）。用ＦＴＩＲ、＾１Ｈ－ＮＭＲ和ＥＡ对其化学结构及生色团含量进行了表征，以ＰＯＭ，ＤＳＣ、ＴＧＡ和ＷＡＸＤ对聚合物介晶相转变温度、织构、热稳定性及相行为进行了研究。结果表明，Abstract: Two azobenzene-containing polyethers (PAEG, PAV) were synthesized and their thermotropic liquid crystalline properties were investigated. The respective backbone polymers, P(GCE) and P(GCE-co-HBVE), were prepared by cationic polymerization and photo copol
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