화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터)
권호 35권 1호
발표분야 고분자 합성
제목 Synthesis of Functional Poly (divinylbenzene) Nanoparticles by Inter-block RAFT Polymerization
초록 An efficient synthetic method of stable nanoparticles with PEO functionalities on the core surface was developed and one advantage of this method is that the micellization and cross-linking reactions occur in one pot, forming stable nanoparticles with functional surfaces. First, amphiphilic PEO-b-PS copolymers were synthesized by RAFT polymerization of styrene using PEO-based trithiocarbonate as macro-RAFT agent. The low molecular weight PEO-b-PS copolymer was dissolved in isopropyl alcohol where the block copolymer self-assembled as core-shell micelles, and then the core-shell interface cross-link was performed using DVB as a cross-linking agent and AIBN as an initiator. Design of the amphiphilic RAFT agent is found to be critical for the successful preparation of core-shell interface cross-linked micelle nanoparticles, because RAFT functional group inter-connects PEO and polystyrene block. The PEO functionality of the nanoparticles surface was confirmed by 1H-NMR and FT-IR.
저자 MD. Harun-Or Rashid, Md. Daloar Hossain, 임권택
소속 부경대
키워드 Core-shell interface; cross-linked micelle; reversible addition fragmentation chain transfer.
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