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Proton-Conducting Polymers via Free Radical Polymerization of Diisopropyl-p-vinylbenzyl Phosphonate and 1-Vinylimidazole

Pu, Hongting ; Qin, Yujie ; Wan, Decheng ; Yang, Zhenglong

Macromolecules, 2009-04, Vol.42 (8), p.3000-3004 [Periódico revisado por pares]

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Título:
Proton-Conducting Polymers via Free Radical Polymerization of Diisopropyl-p-vinylbenzyl Phosphonate and 1-Vinylimidazole
Autor: Pu, Hongting ; Qin, Yujie ; Wan, Decheng ; Yang, Zhenglong
Assuntos: Applied sciences ; Exact sciences and technology ; Organic polymers ; Physicochemistry of polymers ; Polymers with particular properties ; Preparation, kinetics, thermodynamics, mechanism and catalysts
É parte de: Macromolecules, 2009-04, Vol.42 (8), p.3000-3004
Descrição: Copolymers of diisopropyl-p-vinylbenzyl phosphonate (DIPVBP) and 1-vinylimidazole (1VI) prepared by free radical polymerization were studied. It was found that 1-vinylimidazole can be polymerized with DIPVBP. The reactivity ratios of 1VI and DIPVBP obtained from Kelen−Tudos plots were 0.10 (r 1: 1VI) and 3.10 (r 2: DIPVBP), respectively. According to the reactivity ratios, it is presumed that the imidazole moiety is surrounded by the phosphonate groups in the early stage of the copolymerization. A proton-conducting copolymer of vinylbenzylphosphonic acid and 1-vinylimidazole (P(VBPA-co-1VI)) was then obtained from poly(diisopropyl-p-vinylbenzyl phosphonate-co-1-vinylimidazole) by hydrolysis of the phosphonate groups, which exhibits higher proton conductivity (10−1 S cm−1 at 30 °C) than the homopolymer of poly(vinylbenzylphosphonic acid).
Editor: Washington, DC: American Chemical Society
Idioma: Inglês

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