期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 87, 期 1, 页码 114-119出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2004.05.003
关键词
atom transfer radical polymerization; amphiphilic copolymers; C-60 terminated polymer; PtBA-PS block copolymer; photoconductivity
Atom transfer radical polymerization (ATRP) catalyzed by N,N',N',N,N-pentamethyldiethylenetriamine (PMDETA)/CuBr was performed to synthesize poly (tert-butyl acrylate) (PtBA-Br) with predesigned molecular weight and narrow polydispersity. Using the PtBA-Br as macroinitiator, the PtBA-block-PS copolymer was prepared through ATRP. After terminated bromine atom was converted to end-functional azide group (P(tBA-b-St)-N-3) C-60 end-capped PtBA-PS block copolymers (P(tBA-b-St)-C-60) were synthesized by reacting C-60 with P(tBA-b-St)-N-3. GPC characterizations showed that C-60 was chemically bonded to the end of P(tBA-b-St) chain and the products were mono-substituted. FT-IR, UV-Vis measurements confirmed that hydrolysis of P(tBA-b-St)-C-60 resulted in amphiphilic C-60 end-capped PAA-PS block copolymers. In additional, the photoconductivity of P(tBA-b-St)-C-60 was measured. (C) 2004 Elsevier B.V. All rights reserved.
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