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Preparation and characterization of ultra-low molecular weight poly(vinyl alcohol) graft copolymer

Authors

  • MinJie Guo,

    Corresponding author
    1. College of Sciences, Tianjin University of Science and Technology, Tianjin 300457, People's Republic of China
    • College of Sciences, Tianjin University of Science and Technology, Tianjin 300457, People's Republic of China
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  • JianJun Xia,

    1. Key Laboratory of Functional Polymer Materials, Ministry of Education of China, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, People's Republic of China
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  • Zhi Fan,

    1. College of Sciences, Tianjin University of Science and Technology, Tianjin 300457, People's Republic of China
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  • Zhuo Zhao,

    1. Key Laboratory of Functional Polymer Materials, Ministry of Education of China, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, People's Republic of China
    2. Tianjin Entry-Exit Inspection and Quarantine Bureau, Tianjin 300201, People's Republic of China
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  • HuaiFeng Mi

    1. Key Laboratory of Functional Polymer Materials, Ministry of Education of China, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, People's Republic of China
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Abstract

Graft reaction of acrylamide (AM) and 4-vinyl pyridine (4-VP) onto ultra-low molecular weight poly(vinyl alcohol) by ceric (IV) ion initiation had been systematically investigated; and the graft conditions were optimized by studying the effect of monomer/initiator concentration, solvents composition, reaction time and temperature. At optimized conditions, the maximum grafting efficiency and grafting ratio was ∼ 50% and 51%, respectively with the presence of AM, whereas they decreased to 19% and 23%, respectively, without the presence of AM. Thermogravimetric analysis showed that as-resulted graft copolymer had a lower thermal stability than homopolymer PVA. FTIR and 1H-NMR confirmed chemical structure of as-synthesized graft copolymer. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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