含羧基的液晶离聚物

Liquid Crystal Ionomer with Carboxyl Group

探讨了含有羧酸基液晶离聚物,描述了主/侧链带有羧酸基液晶离聚物,并分别讨论了不同羧酸基含量对碳氢和硅氧烷为主链的侧链带羧酸基液晶离聚物的Tg和Ti的影响。随着羧酸基的增加,对不同类型液晶离聚物Tg的影响规律不同,主要为羧酸基的增加产生不同氢键交联度的结果;同时羧酸基链段的长短也对Tg有重要的影响。随着离子浓度的增加,液晶离聚物的Ti总体呈下降趋势。不同浓度的羧酸基对液晶相和焓变ΔH也具有影响。

Talk about the Liquid Crystal Ionomer with carboxyl group in main/side position. The influence of different content carboxyl group to the Tg and Ti with carbon hydrogen and siloxane backbone are described. The effect of hydrogenolysis on glass transition temperature （Tg） of Liquid Crystal Ionomer have different rules when the carboxyl group was gradually added. The variation trends of clearing point （ Ti ） of Liquid Crystal Ionomer are decreased with growing of earboxyl group. The phase and enthalpy increment of liquid crystal are influenced by different content of carboxyl group.