可控交联聚醚醚酮的动态力学性能  

Dynamic Mechanical Properties of Controllable Cross-linking Poly(ether ether ketone)s

作　　者：刘新才[1] 周宏伟[1] 李志成[1] 陈春海[1] 魏占海[1] 张万金[1] 

机构地区：[1]吉林大学麦克德尔米德实验室,长春130012

出　　处：《高等学校化学学报》2005年第3期580-582,共3页Chemical Journal of Chinese Universities

基　　金：国家高技术研究发展"八六三"计划 (批准号 :2 0 0 2 AA 3 3 3 0 10 );国家"九七三"项目 (批准号 :G2 0 0 3 CB615 60 4);吉林省杰出青年基金 (批准号 :3 D2 0 4B0 414 12 );吉林大学创新工程 (批准号 :45 0 0 110 2 2 173 )资助 .

摘　　要：Dynamic mechanical analysis(DMA) was used to investigate the dynamic mechanical and thermal properties of the controllable cross-linking poly(ether ether ketone)s containing thioether bond and pure poly(ether ether ketone). The processes of cross-linking reaction were monitored with the changes in storage modulus(E′) and tanδ with the change of temperature. The storage modulus(E′) increases in the high temperature region and tanδ shifts toward high temperature with increasing the degree of cross-linking. Comparing dynamic mechanical properties of pure poly(ether ether ketone) with that of the controllable cross-linking poly(ether ether ketone)s, we can conclude that the cross-linking reaction could occurred at the sites of thioether bonds. The novel polymer can be processed as conveniently as thermoplastic material before cross-linking and has a high application temperature as thermosetting material after cross-linking. It can be applied to a new technological region.Dynamic mechanical analysis(DMA) was used to investigate the dynamic mechanical and thermal properties of the controllable cross-linking poly(ether ether ketone)s containing thioether bond and pure poly(ether ether ketone). The processes of cross-linking reaction were monitored with the changes in storage modulus(E′) and tanδ with the change of temperature. The storage modulus(E′) increases in the high temperature region and tanδ shifts toward high temperature with increasing the degree of cross-linking. Comparing dynamic mechanical properties of pure poly(ether ether ketone) with that of the controllable cross-linking poly(ether ether ketone)s, we can conclude that the cross-linking reaction could occurred at the sites of thioether bonds. The novel polymer can be processed as conveniently as thermoplastic material before cross-linking and has a high application temperature as thermosetting material after cross-linking. It can be applied to a new technological region.

关 键 词：聚醚醚酮 动态力学分析(DMA) 可控交联 

分 类 号：O631[理学—高分子化学]