화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2007년 봄 (04/19 ~ 04/20, 울산 롯데호텔)
권호 13권 1호, p.35
발표분야 고분자
제목 Synthesis and characterization of MPEG-b-PDPA amphiphilic block copolymer via atom transfer radical polymerization
초록 Block copolymer micelles are generally formed by the self-assembly of amphiphilic block copolymers in an aqueous medium. The hydrophilic and hydrophobic blocks form shell and core micelles, respectively. The block copolymers of methoxy poly (ethylene glycol (MPEG) - b - poly (2-diisopropylamino) ethyl methacrylate(PDPA) were synthesized via atom transfer radical polymerization. The macroinitiator was synthesized by the coupling of 2-bromoisobutyryl bromide with MPEG in the presence of triethyl amine base catalyst. The atom transfer radical polymerization of PDPA was performed in conjunction with an N,N,N’,N’’,N’’’-pentamethyldiethylene triamine / copper bromide catalyst system in DMF as the solvent at 70°C. The pH induced micellization / demicellization was studied by fluorescence using pyrene as a probe.
저자 한종권, Kasala Dayananda, 이두성
소속 성균관대
키워드 atom transfer radical polymerization; block copolymers; micelles; macroinitiator; poly(2-(diisopropylamino)ethyl methacrylate(PDPA)
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