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聚芳醚酮与液晶聚酯多嵌段共聚物的合成表征 被引量:2
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作者 杨延华 戴晓晖 +2 位作者 周兵 马荣堂 姜振华 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2005年第3期589-591,共3页
Block copolymers containing poly(aryl ether ketone) unit and different lengths of thermotropic liquid crystalline polyesters(TLCP) segments were synthesized by high temperature solution polymerization. The chemical st... Block copolymers containing poly(aryl ether ketone) unit and different lengths of thermotropic liquid crystalline polyesters(TLCP) segments were synthesized by high temperature solution polymerization. The chemical structure, thermal properties and liquid crystalline behavior of the block copolymers were investigated by FTIR, DSC and PLM respectively. A single glass transition revealed that the two blocks had good a compatibility. The length of TLCP segment had a significant influence on the copolymers′ liquid crystalline behavior. When the molecular weight of TLCP reduced to 2965, liquid crystallinity of copolymer disappeared. The block copolymers showed a typical nematic threaded texture which differed from polyester′s. 展开更多
关键词 聚芳醚酮 嵌段共聚物 热致液晶 向列相织构
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