화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2005년 가을 (10/13 ~ 10/14, 제주 ICC)
권호 30권 2호
발표분야 탄소나노튜브 및 고분자 복합재료
제목 Covalent Attachment of Poly(ethylene glycol) on Multi-Walled Carbon Nanotubes
초록 1Department of Polymer Science and Engineering, Pusan National University, Busan 609-735, Korea
2Iljin Nanotech Co., Ltd., Seoul 157-810, Korea
3Peoplebio Inc., Seoul 120-825, Korea
4Department of Physics, Pusan National University, Busan 609-735, Korea

Abstract
A new “graft-onto” method to attach poly(ethylene glycol) (PEG) on multi-walled carbon nanotubes (MWNTs) has been developed. The method is based on the coupling reaction of radicals formed at the chain end of PEG onto the surface of MWNTs. The polymeric radicals are generated by atom (halogen) transfer reaction between chloroacetyl-terminated PEG and transition metal catalysts. The method allows direct covalent attachment of PEG to pristine MWNTs without pretreatment altering their original structure. The resulted PEG grafted MWNTs showed improved dispersion stability in isopropanol and methanol.
저자 한정훈1, 장준호1, 최진환1, 오샛별1, 한종훈2, 안성수3, 김복기1, 백현종1
소속 1부산대, 2일진 나노텍, 3피플 바이오
키워드 Carbon Nanotubes; Covalent Functionalization; Graft-onto Reaction; Poly(ethylene glycol); Radical Reaction
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