Block Copolymerization of Vinyl Monomers with Macroiniferer |
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| Authors: | Xiao-min Yang Kun-Yuan Qiu |
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| Affiliation: | 1. Institute of Polymer Science Chemistry Building Peking University , Beijing, 100871, People's Republic of China;2. Department of Chemistry , City College of New York , New York, NY, 10031;3. Institute of Polymer Science Chemistry Building Peking University , Beijing, 100871, People's Republic of China |
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| Abstract: | Abstract Block copolymers composed of a polyether, such as poly(oxytetra-methylene), and vinyl polymers, such as polystyrene, poly(methyl methacrylate), poly(butyl acrylate), and poly(vinyl acetate), were prepared by photopolymerizations of vinyl monomers initiated with a polyether macroiniferter, α - (diethyldithiocarbamylacetyl) - ω - (diethyldithiocar-bamylacetoxy)-poly(oxytetramethylene). ESR spectroscopy and end-group analysis of diethyldithiocarbamyl indicated that block copolymers should be predominantly ABA-type copolymers. The block copolymers were characterized in detail by NMR, GPC, and DSC analysis. |
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