Synthesis,Characterization and Protonation Study of Novel Poly(thioether imide)s based on Aromatic Heterocyclic Diimide  

作　　者：赵晓燕 WANG Chenyi ZHAO Xiaohua SUN Zheng 

机构地区：[1]College of Petrochemical Engineering, Changzhou University [2]Changzhou Expansion New Stuff Technology Co., Ltd [3]School of Materials Science and Engineering, Changzhou University

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2013年第2期269-273,共5页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Natural Science Foundation of China for Young Schoolar(No.51103016);the Natural Science Foundation of Jiangsu Province(No.BK2011241);the State Key Laboratory for Modification of Chemical Fibers and Polymer Materials(No.LK1001);the Changzhou University Projects(No.CZUYJ1009&CJ20125006)

摘　　要：Novel poly（thioether imide）s were synthesized by 2,5-dimercapto-l,3,4-thiadiazole, and aromatic heterocyclic chlorodiimids through nucleophilic!substitution reaction as alkali catalysts were presented. The poly（thioether imide）s exhibited good thermal property. The glass transition temperatures of polymers were around 373 ℃, and 10% weight loss temperatures were in the range of 450-500 ℃ in nitrogen/air atmosphere. Meanwhile, the chloroform dilute solutions of these polYmers could show strong UV-vis absorption peaks at about 289 nm. After being protonated by inorganic acids （HC1）, the new shoulder absorption peaks were observed at 350 nm. The PL absorption bands of polymer solutions were in the region of 350-550 nm, which showed the green-yellow fluorescence.Novel poly（thioether imide）s were synthesized by 2,5-dimercapto-l,3,4-thiadiazole, and aromatic heterocyclic chlorodiimids through nucleophilic!substitution reaction as alkali catalysts were presented. The poly（thioether imide）s exhibited good thermal property. The glass transition temperatures of polymers were around 373 ℃, and 10% weight loss temperatures were in the range of 450-500 ℃ in nitrogen/air atmosphere. Meanwhile, the chloroform dilute solutions of these polYmers could show strong UV-vis absorption peaks at about 289 nm. After being protonated by inorganic acids （HC1）, the new shoulder absorption peaks were observed at 350 nm. The PL absorption bands of polymer solutions were in the region of 350-550 nm, which showed the green-yellow fluorescence.

关 键 词：aromatic heterocyclic chlorodiimide thermal stability fluorescence PROTONATION 

分 类 号：O631.3[理学—高分子化学]