CARBAZOLE-CONTAINING HYPERBRANCHED POLY(ARYLENEETHYNYLENE)S:SYNTHESIS,CHARACTERIZATION,ANDPROPERTIES  

作　　者：Han Peng Xiu-wen Zheng Jacky W. Y. Lam Ben-zhong Tang 

机构地区：[1]Institute of Material Science and Engineering, South China University of Technology, Guangzhou 510640, China [2]Department of Chemistry, Hong Kong University of Science ＆ Technology, Clear Water Bay, Kowloon, Hong Kong, China

出　　处：《Chinese Journal of Polymer Science》2007年第6期641-649,共9页高分子科学（英文版）

基　　金：This project was financially supported by National Natural Science Foundation of China(No.50473034).

摘　　要：New hyperbranched poly（aryleneethynylene）s containing carbazole moieties are synthesized in high yields （up to 87%） by polycyclotrimerization of 3,6-bis（4-ethynylphenyl）-9-octylcarbazole and its copolymerization with 1-octyne catalyzed by CpCo（CO）2 in THF. The structures and properties of the polymers are characterized and evaluated by IR, NMR, TGA, UV, photoluminescence, and cyclic voltammetry analyses. All the polymers are soluble in common organic solvents and show outstanding thermal stability （≥ 430℃）. They graphitize in high yields （up to 79%） when pyrolyzed at 800℃. Upon photoexcitation, the polymers emit a strong deep blue light of ca. 400 nm with quantum yields larger than 60%.New hyperbranched poly（aryleneethynylene）s containing carbazole moieties are synthesized in high yields （up to 87%） by polycyclotrimerization of 3,6-bis（4-ethynylphenyl）-9-octylcarbazole and its copolymerization with 1-octyne catalyzed by CpCo（CO）2 in THF. The structures and properties of the polymers are characterized and evaluated by IR, NMR, TGA, UV, photoluminescence, and cyclic voltammetry analyses. All the polymers are soluble in common organic solvents and show outstanding thermal stability （≥ 430℃）. They graphitize in high yields （up to 79%） when pyrolyzed at 800℃. Upon photoexcitation, the polymers emit a strong deep blue light of ca. 400 nm with quantum yields larger than 60%.

关 键 词：ACETYLENES CARBAZOLE CYCLOPOLYMERIZATION HYPERBRANCHED Luminescence. 

分 类 号：O63[理学—高分子化学]