Abstract
In order to obtain a polytetrahydrofuran macromer, living polytetrahydrofuran was coupled with sodium p-vinylphenoxide prepared by the reaction of p-hydroxystyrene with sodium tert-butoxide. The resulting p-vinylphenoxyl polytetrahydrofuran macromer had one p-vinylphenoxyl group per molecule and a high monodispersity (Mw/Mn=1.1). The macromer was polymerized by α,α′-azobisisobutyronitrile in benzene at 60°C. The maximum degree of polymerization of the poly-macromer was 20 under the polymerization conditions employed. With higher initiator concentration, the conversion increased and the degree of polymerization of the poly-macromer became lower. The pure poly-macromer was obtained from a mixture of polymerized and unpolymerized macromers by selective solvent extraction with isopropyl alcohol.
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Asami, R., Takaki, M., Kyuda, K. et al. Preparation and Radical Polymerization of p-Vinylphenoxyl Polytetrahydrofuran Macromer. Polym J 15, 139–144 (1983). https://doi.org/10.1295/polymj.15.139
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DOI: https://doi.org/10.1295/polymj.15.139
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