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Article
Copper(0)-mediated living radical polymerization of acrylonitrile: SET-LRP or AGET-ATRP
Article first published online: 7 OCT 2010
DOI: 10.1002/pola.24350
Copyright © 2010 Wiley Periodicals, Inc.
Issue
Journal of Polymer Science Part A: Polymer Chemistry
Volume 48, Issue 23, pages 5439–5445, 1 December 2010
Additional Information
How to Cite
Liu, X.-H., Zhang, G.-B., Li, B.-X., Bai, Y.-G. and Li, Y.-S. (2010), Copper(0)-mediated living radical polymerization of acrylonitrile: SET-LRP or AGET-ATRP. J. Polym. Sci. A Polym. Chem., 48: 5439–5445. doi: 10.1002/pola.24350
Publication History
- Issue published online: 28 OCT 2010
- Article first published online: 7 OCT 2010
- Manuscript Accepted: 26 AUG 2010
- Manuscript Received: 9 JUN 2010
Funded by
- National Natural Science Foundation of China. Grant Numbers: 20804044, 20923003
- Special Funds for Major State Basis Research Projects. Grant Number: 2006CB605301
- Ministry of Science and Technology of China
Keywords:
- acrylonitrile;
- living polymerization;
- living radical polymerization;
- molar mass distribution;
- molecular weight distribution;
- radical polymerization;
- UV-vis spectroscopy
Abstract
Cu(0)-mediated living radical polymerization was first extended to acrylonitrile (AN) to synthesize polyacrylonitrile with a high molecular weight and a low polydispersity index. This was achieved by using Cu(0)/hexamethylated tris(2-aminoethyl)amine (Me6-TREN) as the catalyst, 2-bromopropionitrile as the initiator, and dimethyl sulfoxide (DMSO) as the solvent. The reaction was performed under mild reaction conditions at ambient temperature and thus biradical termination reaction was low. The rapid and extensive disproportionation of Cu(I)Br/Me6-TREN in DMSO/AN supports a mechanism consistent with a single electron transfer-living radical polymerization (SET-LRP) rather than activators generated by electron transfer atom transfer radical polymerization (AGET ATRP). 1H NMR analysis and chain extension experiment confirm the high chain-end functionality of the resultant polymer. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2010