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Studies on the Physical Properties of Fullerene-Modified Polystyrenes  

이석 (단국대학교 고분자공학과, 기능성 고분자 신소재 연구센터)
김환기 (단국대학교 고분자공학과, 기능성 고분자 신소재 연구센터)
김건형 (서울대학교 재료공학부)
김정안 (한국과학기술연구원 고분자하이브리드 센터)
강호종 (단국대학교 고분자공학과, 기능성 고분자 신소재 연구센터)
Publication Information
Textile Science and Engineering / v.41, no.5, 2004 , pp. 358-364 More about this Journal
Abstract
Star-shaped polystyrenes with the [60]fullerene core were synthesised via anionic polymerization. The solution, thermal, and UV absorbance properties were investigated as a function of number of branched polystyrene chains on the [60]fullerene core. The solution viscosity (intrinsic viscosity) of the [60]fullerene-modified polystyrene decreased with the number of branching due to molecular entanglement. The better coating property of the [60]fullerene-modified polystyrene compared with those of the polystyrene/[60]fullerene mixtures seems to arise from a lower aggregation state of the [60]fullerene core induced by the branched polystyrene chain. An increase in the glass transition temperature of the modified polystyrene with the number of branched chains was observed as well.
Keywords
fullerene; polystyrene; anionic polymerization; branching;
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