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- W3139981749 abstract "The first example of organostibine mediated controlled/living random copolymerization of styrene(St) and methyl methacrylate(MMA) was achieved by heating a solution of St/MMA/organostibine mediator at 100 °C or St/MMA/organostibine mediator/AIBN with various monomer feed ratios at 60 °C.The addition of AIBN significantly decreased the reaction temperature and enhanced the rate of copolymerization.The structure of poly(St-co-MMA) was verified by 1H NMR.The reactivity ratios at 60 °C were determined by the extended Kelen-Tuds method to be YSt = 0.40 and YMMA = 0.44.The ln([M]0/[M]) increased linearly with increasing reaction time.The number-average molecular weights of poly(St-co-MMA) increased linearly with conversion.Poly(St-co-MMA) with expected number-average molecular weight and low polydispersity index was formed.The living characteristic was further confirmed by chain-extension of poly(St-co-MMA) to form poly(St-co-MMA)-b-PMMA." @default.
- W3139981749 created "2021-04-13" @default.
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- W3139981749 date "2010-01-01" @default.
- W3139981749 modified "2023-09-23" @default.
- W3139981749 title "Organostibine mediated controlled/living random copolymerization of styrene and methyl methacrylate" @default.
- W3139981749 hasPublicationYear "2010" @default.
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