Jana, S.; Parthiban, A.; Chai, C. L. L., Narrow disperse polymers using amine functionalized dithiobenzoate RAFT agent and easy removal of thiocarbonyl end group from the resultant polymers. Journal of Polymer Science Part A: Polymer Chemistry 2011, 49, (6), p 1494-1502. DOI:10.1002/pola.24572
Abstract:
A novel amine functionalized RAFT agent, 2-cyanoprop-2-yl(4-N,N-dimethylaminophenyl) dithiobenzoate has been synthesized and used to control the polymerization of vinyl monomers. This dithiobenzoate RAFT agent, although air sensitive, controlled the polymerization of MMA and St very well in an inert atmosphere and the polymerization results obtained were marginally better than using the most popular 2-cyanoprop-2-yl dithiobenzoate RAFT agent. The living nature of these polymerizations was confirmed by kinetics study and chain extension reactions to yield narrow disperse di-block copolymers. Most importantly, use of this novel RAFT agent simplified the removal procedure of the color causing end thiocarbonyl group from the RAFT derived polymers and thereby leading to polymers with improved appearance. The removal of end group from the polymer was confirmed by 1H NMR and UV-vis spectroscopic techniques.
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Publisher Copyright
Funding Info:
This research is supported by core funding from: Institute of Chemical & Engineering Sciences, A*STAR
Grant Reference no. : Grant number is not applicable.
Description:
This is the peer reviewed version of the following article: Jana, S.; Parthiban, A.; Chai, C. L. L., Narrow disperse polymers using amine functionalized dithiobenzoate RAFT agent and easy removal of thiocarbonyl end group from the resultant polymers. Journal of Polymer Science Part A: Polymer Chemistry 2011, 49, (6), p 1494-1502, which has been published in final form at https://doi.org/10.1002/pola.24572. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.