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Reverse atom transfer radical polymerization of MMA via immobilized catalysts in imidazolium ionic liquids
Author(s) -
Li Najun,
Lu Jianmei,
Xu Qingfeng,
Xia Xuewei,
Wang Lihua
Publication year - 2006
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.25729
Subject(s) - catalysis , atom transfer radical polymerization , polymerization , methyl methacrylate , solvent , polymer chemistry , ionic liquid , radical polymerization , chemistry , solution polymerization , materials science , organic chemistry , polymer
Reverse atom transfer radical polymerization (RATRP) of methyl methacrylate (MMA) employing immobilized catalyst was approached at 50 and 60°C in [C 8 mim]PF 6 , and compared with the polymerization of MMA DMF as solvent. Other ionic liquids, [C 6 mim]BF 4 , [C 8 mim]BF 4 , and [C 12 mim]BF 4 , were used as solvents to perform the RATRP of MMA. By comparison, we found that the [C 8 mim]PF 6 was the best solvent in this immobilized catalyst system and the polymerization was best controlled. In addition, the immobilized catalyst spherules can easily separate from the reaction mixture, which avoids the prevalent problem of the catalyst residual in RATRP and also gives us a possibility to recycle the catalyst system. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 103: 3915–3919, 2007