Citation:
ZHANG Xue-Jian, ZHANG Kai-Lin, FENG Ying, ZHAO Ji-Ruo, WANG Yu-Ling. Synthesis of PVC-g-PMMA by Atom Transfer Radical Suspension Polymerization[J]. Chinese Journal of Applied Chemistry,
;2006, 23(5): 543-547.
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The atom transfer radical suspension polymerization(ATRP) of methyl methacrylate(MMA) initiated by poly(vinyl chloride)(PVC) and catalyzed by iron dichloride tetrahydrate/triphenyl phosphine complexes was studied in different suspension systems at 80℃.The systems included ethanol,toluene/ethanol,toluene/H2O,H2O,H2O/Poly(vinyl alcohol)(PVA),and H2O/PVA/Dioctyl phthalate(DOP).A linear dependence of ln [M0]/[M] on reaction time was observed for only two suspension systems,toluene/ethanol and H2O/PVA/DOP,and a linear increase with reaction time of the number average molecular weight of copolymer PVC-g-PMMA was observed.The structures of the copolymers were characterized by IR, 1H NMR,GPC.The grafting efficiency of MMA were 6.7%,17.8%,26.0%,35.1%,respectively after polymerization of 6,15,21,27 h.
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