Synthesis of poly(vinyl acetate) by degenerative transfer polymerization in the presence of iodine | Zendy

Xu Wenjing | Zendy; Zhang Wensheng | Zendy; Li Wei | Zendy; Yan Jinlong | Zendy; Shen Guoyu | Zendy; Li Jun | Zendy

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Synthesis of poly(vinyl acetate) by degenerative transfer polymerization in the presence of iodine

Author(s) -

Xu Wenjing,

Zhang Wensheng,

Li Wei,

Yan Jinlong,

Shen Guoyu,

Li Jun

Publication year - 2012

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.36664

Subject(s) - vinyl acetate , dispersity , polymer chemistry , polymerization , chemistry , radical polymerization , iodine , molar mass distribution , radical , adduct , organic chemistry , copolymer , polymer

Polymerization of vinyl acetate initiated by 2,2′‐azobis(isobutyronitrile) at 75°C in the presence of iodine has been investigated. The process efficiently controls the number‐average molecular weight and low polydispersities ( M w / M n ≤ 1.52). Poly(vinyl acetate) with predetermined molecular weight and relatively low polydispersity was successfully synthesized. The polymerization was followed by online 1 H‐NMR spectra to investigate the evolution of several compounds in the reaction medium, especially the adduct of α‐iodoisobutyronitrile ((CH 3 ) 2 (CN)CI) between primary radicals and iodine. The structure of the end groups of poly(vinyl acetate) also was investigated using 1 H‐NMR spectra. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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