Open AccessPreparation of Polystyrene Functionalized Graphene by Atom Transfer Nitroxide Radical Coupling Reaction
Author(s) -
Xiaoyi Chen,
Yuanlin Shi,
Dong Yang,
Jianhu Hu,
Pengyuan Yang
Publication year - 2012
Publication title -
acta chimica sinica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.565
H-Index - 40
ISSN - 0567-7351
DOI - 10.6023/a1112251
Subject(s) - chemistry , nitroxide mediated radical polymerization , polystyrene , graphene , coupling reaction , coupling (piping) , atom transfer radical polymerization , photochemistry , atom (system on chip) , polymer chemistry , nanotechnology , organic chemistry , radical polymerization , catalysis , composite material , polymer , copolymer , materials science , computer science , embedded system
Polystyrene functionalized graphene was prepared by atom transfer nitroxide radical coupling(ATNRC) reaction.Graphene oxide was first reacted with thionyl chloride,followed by esterification with 4-hydroxy-2,2,6,6-tetramethyl-piperidinyl-1-oxyl(HTEMPO) to prepare HTEMPO functionalized graphene(Graphene-HTEMPO).Then,Graphene-HTEMPO was coupled with Br-end-capping polystyrene prepared by atom transfer radical polymerization(ATRP) via ATNRC reaction to obtain polystyrene covalently func-tionalized graphene(Graphene-g-PS).The thermogravimetric analysis result showed that the graft ratio of PS was 6.68 wt%.The PS on the surface of graphene could be obviously observed from the TEM image.Because of the covalent graft of PS,Graphene-g-PS showed good dispersibility in chloroform,hexane,tolu-ene,methanol,etc.,which is favorable to the further application of graphene.
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