화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2008년 가을 (10/09 ~ 10/10, 일산킨텍스)
권호 33권 2호
발표분야 고분자 합성
제목 Size and Shape Controlled Synthesis of Gold Nanoparticles using Poly(1H,1H-dihydroperfluorooctyl methacrylate-b-ethylene oxide) Block Copolymers
초록 Well-defined diblock copolymers consisting of a hydrophilic poly(ethylene oxide) (PEO) and hydrophobic poly(1H,1H-dihydroperfluorooctyl methacrylate) (PFOMA) block were utilized to the self-assembly of gold nanoparticles. Gold nanoparticles were prepared through LiAuCl4 autoreduction in the microphase separated morphology of poly(FOMA10k-b-EO10k) block copolymer from chloroform solution at ambient temperature. The particle size and shape were controlled by the block copolymer concentration and PEO block lengths. Our findings indicate that longer PEO blocks lead to an increase in particle size because of an increase in reduction site. An increase in the LiAuCl4 concentration causes a change in the particle shape from spherical to tetragonal or multi-pods nanoplates with increased size.
저자 이민영, 임권택, 김상재
소속 부경대
키워드 Micelles; Self-assembly; Amphiphilic block copolymers; Gold nanoparticles
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