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Issue 9, 2011
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Nitroxide mediated controlled synthesis of glycidyl methacrylate-rich copolymers enabled by SG1-based alkoxyamines bearing succinimidyl ester groups

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Abstract

The controlled nitroxide-mediated copolymerization of glycidyl methacrylate (GMA) and styrene (S) with varying GMA molar feed fractions (fGMA,0 = 0.12–0.94) was accomplished by using a SG1-based alkoxyamine initiator bearing a N-succinimidyl ester group (NHS-BlocBuilder) in 50 wt% 1,4-dioxane solution at 90 °C. Copolymerizations indicated linear evolution of number average molecular weight Mn with respect to conversion up to approximately 50% and narrow molecular weight distributions with Mw/Mn = 1.22–1.44 and GMA incorporation into copolymer (FGMA) as high as 0.92. No additional SG1 free nitroxide was required to control polymerizations, even at high fGMA,0. Chain extensions of poly(GMA-ran-S) macroinitiators with S at 110 °C yielded a high fraction of block copolymer in most cases (except at the highest FGMA), as clear, monomodal shifts in Mn using gel permeation chromatography (GPC) were observed, thereby suggesting the poly(GMA-ran-S) macroinitiators were substantially “living”.

Graphical abstract: Nitroxide mediated controlled synthesis of glycidyl methacrylate-rich copolymers enabled by SG1-based alkoxyamines bearing succinimidyl ester groups

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Publication details

The article was received on 02 May 2011, accepted on 25 May 2011 and first published on 22 Jun 2011


Article type: Paper
DOI: 10.1039/C1PY00190F
Citation: Polym. Chem., 2011,2, 2084-2092
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    Nitroxide mediated controlled synthesis of glycidyl methacrylate-rich copolymers enabled by SG1-based alkoxyamines bearing succinimidyl ester groups

    A. Moayeri, B. Lessard and M. Maric, Polym. Chem., 2011, 2, 2084
    DOI: 10.1039/C1PY00190F

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