Reverse atom transfer radical polymerization of MMA via immobilized catalysts in imidazolium ionic liquids |
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| Authors: | Najun Li Jianmei Lu Qingfeng Xu Xuewei Xia Lihua Wang |
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| Affiliation: | Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Suzhou University, Su Zhou, Jiangsu 215123, People's Republic of China |
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| Abstract: | Reverse atom transfer radical polymerization (RATRP) of methyl methacrylate (MMA) employing immobilized catalyst was approached at 50 and 60°C in [C8mim]PF6, and compared with the polymerization of MMA DMF as solvent. Other ionic liquids, [C6mim]BF4, [C8mim]BF4, and [C12mim]BF4, were used as solvents to perform the RATRP of MMA. By comparison, we found that the [C8mim]PF6 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 |
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| Keywords: | reverse ATRP immobilized catalyst imidazolium ionic liquids |
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