2002•Acta Polymerica SinicaRequires access

SYNTHESIS AND CHARACTERIZATION OF WELL-DEFINED GRAFT COPOLYMER OF STYRENE AND n-BUTYL ACRYLATE

HU Chun-pu

Abstract

A well defined graft copolymer of styrene(St) and n butyl acrylate(BA) was synthesized by atom transfer radical polymerization(ATRP) with the copolymer of styrene and chloromethyl stryrene as macroinitiator,which was first synthesized by the nitroxide mediated copolymerization of St and 4 chloromethyl styrene (CMS) at 130℃ with benzoyl peroxide/4 hydro TEMPO as initiator.The kinetics of the two kinds of “living”/controlled polymerization were also studied.These copolymers, i.e. P(St co \|CMS) and P(St g BA),were characterized by means of GPC,DSC and 1H NMR,respectively.The average graft number and length of side chains for such a kind of graft copolymer were defermined.

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Key concepts: Copolymer, Styrene, Polymer chemistry, Nitroxide mediated radical polymerization, Materials science, Polymerization, Butyl acrylate, Benzoyl peroxide