화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전))
권호 33권 1호
발표분야 기능성 고분자
제목 Synthesis of poly(ethylene oxide) -b- polystyrene via anionic to radical transformation reation
초록 Poly(ethylene oxide)-based macroinitiator for ATRP(atom transfer radical polymerization) was synthesized in a mixture of benzene, dimethylsulfoxide(DMSO), and tetrahydrofuran(THF) at 35℃, using potassium n-butyllithium and potassium tert-butoxide as an anionic initiating system under high vacuum via anionic polymerization of ethylene oxide. The PEO-based macroinitiator was converted to xanthate type of RAFT agnet in THF at 35℃ using potassium ethyl xanthogenate under nitrogen. PEO -b- PS was synthesized in toluene at 120℃ using PEO-based xanthate type RAFT agent and AIBN via RAFT radical polymerization of styrene. The block copolymers will be used in a variety of application fields such as nanotubes and thin film. In this presentation, we will report all the results for these experiments.
저자 김근석1, 김정안1, 김태환1, 전희정1, 김진흥1, 황승상2, 백경열2, 홍순만2
소속 1경희대, 2KIST
키워드 RAFT polymerization
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