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

Han Peng Xiu-wen Zheng~a Jacky W.Y.Lam~b Ben-zhong Tang~() ~aInstitute of Material Science and Engineering; South China University of Technology; Guangzhou 510640; China ~bDepartment of Chemistry; Hong Kong University of Science & Technology; Clear Water Bay; Kowloon; Hong Kong; China

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

Updated：2021-06-21

- CARBAZOLE-CONTAINING HYPERBRANCHED POLY（ARYLENEETHYNYLENE）S:SYNTHESIS,CHARACTERIZATION,ANDPROPERTIES
- Issue 6, Pages: 641-649(2007)
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  This project was financially supported by National Natural Science Foundation of China（No.50473034）.()
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Han Peng Xiu-wen Zheng~a Jacky W.Y.Lam~b Ben-zhong Tang~() ~aInstitute of Material Science and Engineering, South China University of Technology, Guangzhou 510640, et al. CARBAZOLE-CONTAINING HYPERBRANCHED POLY（ARYLENEETHYNYLENE）S:SYNTHESIS,CHARACTERIZATION,ANDPROPERTIES. [J]. (6):641-649(2007)
DOI：

Han Peng Xiu-wen Zheng~a Jacky W.Y.Lam~b Ben-zhong Tang~() ~aInstitute of Material Science and Engineering, South China University of Technology, Guangzhou 510640, et al. CARBAZOLE-CONTAINING HYPERBRANCHED POLY（ARYLENEETHYNYLENE）S:SYNTHESIS,CHARACTERIZATION,ANDPROPERTIES. [J]. (6):641-649(2007) DOI：

摘要

<,正,>,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%.

Abstract

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%.

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