Antibacterial Behaviour of Quaternized Poly（vinyl chloride）-g-Poly（4-vinyl pyridine） Graft Copolymers

Antibacterial Behaviour of Quaternized Poly（vinyl chloride）-g-Poly（4-vinyl pyridine） Graft Copolymers

Amphiphilic graft copolymers consisting of poly（vinyl chloride）（PVC） main chains and poly（4-vinyl pyridine）（P4VP） side chains were synthesized via atom transfer radical polymerization（ATRP） using direct initiation of chlorine atoms. The successful synthesis of PVC-g-P4 VP graft copolymers was confir...

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Veröffentlicht in:高分子科学：英文版 2015 (2), p.265-274
1. Verfasser: Madhumita Patel Rajkumar Patel Won Seok Chi Jong Hak Kim Jung-Suk Sung
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Sprache:eng
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4-乙烯基吡啶
两亲接枝共聚物
原子转移自由基聚合
季铵化
小角度X射线散射
抗菌性能
氯乙烯
金黄色葡萄球菌
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description Amphiphilic graft copolymers consisting of poly（vinyl chloride）（PVC） main chains and poly（4-vinyl pyridine）（P4VP） side chains were synthesized via atom transfer radical polymerization（ATRP） using direct initiation of chlorine atoms. The successful synthesis of PVC-g-P4 VP graft copolymers was confirmed by Fourier transform infrared spectroscopy（FTIR） and proton nuclear magnetic resonance（1H-NMR）. Transmission electron microscope（TEM） and small angle X-ray scattering（SAXS） analysis showed that PVC-g-P4 VP exhibited microphase-separated, ordered structure with 37.6 nm of domain spacing, which was not observed in neat PVC. For antibacterial applications, the tertiary nitrogen atoms of PVC-gP4 VP was quaternized using 1-bromohexane, as confirmed by FTIR measurements. Bacteria including Escherichia coli（E. coli）, Staphylococcus aureus（S. aureus）, Bacillus cereus（B. cereus）, and Pseudomonas aeruginosa（P. aeruginosa） were completely killed in 24 h on the quaternized PVC-g-P4VP（46% grafting） surface, indicating its excellent antibacterial behavior while it showed to be cytotoxic to mammalian cell.
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The successful synthesis of PVC-g-P4 VP graft copolymers was confirmed by Fourier transform infrared spectroscopy（FTIR） and proton nuclear magnetic resonance（1H-NMR）. Transmission electron microscope（TEM） and small angle X-ray scattering（SAXS） analysis showed that PVC-g-P4 VP exhibited microphase-separated, ordered structure with 37.6 nm of domain spacing, which was not observed in neat PVC. For antibacterial applications, the tertiary nitrogen atoms of PVC-gP4 VP was quaternized using 1-bromohexane, as confirmed by FTIR measurements. 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subjects 4-乙烯基吡啶
两亲接枝共聚物
原子转移自由基聚合
季铵化
小角度X射线散射
抗菌性能
氯乙烯
金黄色葡萄球菌
title Antibacterial Behaviour of Quaternized Poly（vinyl chloride）-g-Poly（4-vinyl pyridine） Graft Copolymers
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