Published in
Wiley, Journal of Polymer Science Part A: Polymer Chemistry, 24(47), p. 7021-7031, 2009
DOI: 10.1002/pola.23741
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Synthesis of high glass transition temperature copolymers based on poly(vinyl chloride) via single electron transfer—Degenerative chain transfer mediated living radical polymerization (SET-DTLRP) of vinyl chloride in water
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Anatoliy V. Popov,
Virgil Percec,
Pedro M. O. F. Gonçalves,
Maria Helena Gil
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Abstract
α,ω-Di(iodo) poly(isobornyl acrylate) macroiniators (α,ω-di(iodo)PIA) with no. av. mol. wt. from Mn,TriSEC = 11,456 to Mn,TriSEC = 94,361 were synthesized by single electron transfer-degenerative chain transfer mediated living radical polymn. (SET-DTLRP) of isobornyl acrylate (IA) initiated with iodoform (CHI3) and catalyzed by sodium dithionite (Na2S2O4) in water at 35 °C. The plots of no. av. mol. wt. vs. conversion and ln{[M]0/[M]} vs. time are linear, indicating a controlled polymn. α,ω-di(iodo) poly(isobornyl acrylate) have been used as a macroinitiator for the SET-DTLRP of vinyl chloride (VCM) leading to high Tg block copolymers PVC-b-PIA-b-PVC. The dynamic mech. thermal anal. of the block copolymers suggests just one phase indicating that copolymer behaves as a single material. This technol. provides the possibility of synthesizing materials based on PVC with higher Tg in aq. medium. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2009. [on SciFinder(R)]