Preparation and characterization of ultra‐low molecular weight poly(vinyl alcohol) graft copolymer | Zendy

Guo MinJie | Zendy; Xia JianJun | Zendy; Fan Zhi | Zendy; Zhao Zhuo | Zendy; Mi HuaiFeng | Zendy

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

Author(s) -

Guo MinJie,

Xia JianJun,

Fan Zhi,

Zhao Zhuo,

Mi HuaiFeng

Publication year - 2009

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.30453

Subject(s) - copolymer , grafting , thermogravimetric analysis , polymer chemistry , monomer , vinyl alcohol , thermal stability , materials science , fourier transform infrared spectroscopy , acrylamide , chemistry , chemical engineering , polymer , organic chemistry , composite material , engineering

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 1 H‐NMR confirmed chemical structure of as‐synthesized graft copolymer. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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