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Synthesis and Solution Properties of the Photo-Sensitive Telechelic Polymer——Coumarin-Containing Poly(4-vinylpyridine)

JIANG Jin-Qiang, 江南大学化学与材料工程学院, 江苏 无锡 214122,School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, P. R. China, QIANG Jing, NI Zhong-Bin, SONG Xiao-Qing, ZHANG Hong-Wu, LIU Xiao-Ya, CHEN Ming-Qing
2011 Wuli huaxue xuebao  

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A novel photo-sensitive telechelic polymer--coumarin-containing poly(4-vinylpyridine) (C-P4VP) was prepared using 4-vinylpyridine as a monomer, azodiiso-butyronile (AIBN) as an initiator, and coumarin-containing disulfides (C-S-S-C) as a chain transfer agent in the presence of tributylphosphine (Bu3P)/H2O. The polymer was characterized by Fourier transform infrared (FTIR) spectroscopy, 1 H nuclear magnetic resonance ( 1 H-NMR), and gel permeation chromatography (GPC). We found that the
more » ... c polymer can form polymer micelles in aqueous solutions at various pH values (pH=3-6). Additionally, when lowering the acidity of the aqueous solution, the polymer micelles gradually compacted and the degree of coumarin photo-dimerization decreased initially and then increased within a similar irradiation time.
doi:10.3866/pku.whxb20110238 fatcat:5ymska42qvd4resqkzqx3wp33i
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JIANG Jin-Qiang, 江南大学化学与材料工程学院, 江苏 无锡 214122,School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, P. R. China, QIANG Jing, NI Zhong-Bin, SONG Xiao-Qing, ZHANG Hong-Wu, LIU Xiao-Ya, CHEN Ming-Qing. "Synthesis and Solution Properties of the Photo-Sensitive Telechelic Polymer——Coumarin-Containing Poly(4-vinylpyridine)." Wuli huaxue xuebao 27.03 (2011) 664-670