volume 10, issue 1, P151-161 1972
DOI: 10.1002/pol.1972.150100113
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Abstract: synopsisBlock copolymers containingpolyether segments and segments of a vinyl polymer have been synthesized. A low molecular weight polyether terminated with isocyanate groups was condensed with bis-@-hydroxyethyl disulfide) to give polyurethanes containing reactive disulfide linkages. When this polymer was photolyzed in the presence of avinyl monomer such as styrene, methyl methacrylate, or acrylonitrile, homolytie cleavage of the disulfide polymerized the monomer, giving block copolymers. The mechanical pro…

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