화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2010년 가을 (10/07 ~ 10/08, 대구 EXCO)
권호 35권 2호
발표분야 대학원생 구두발표
제목 The Influence of Hydrogen Bonding in Block Copolymer Transition
초록 It is well known that the block copolymer (BCP) forms a complex with low molecular weight molecules as well as with macromolecules, which has applications in various fields. We investigated transition behavior for block copolymer mixtures composed of a symmetric polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) and phenylacetamide derivatives, where the hydroxyl functionality at para postion is available only for 4-hydroxyphenylacetamide (HPA) and not for phenylacetamide (PA). In comparison to PA, the increase in TODT with the addition of HPA was observed and measured by in-situ small angle x-ray scattering (SAXS) and depolarized light scattering (DPLS), and an annealing temperature dependence for BCP mixtures with HPA indicates that only the complex by H-bonding mediation between the nitrogen units of P2VP block and hydroxyl group in the HPA enhances nonfavorable segmental interactions between two block components.
저자 나이두1, 안형주1, 이호연1, 정영미2, 류두열1
소속 1연세대, 2부산대
키워드 block copolymer; transition; H-bonding; supramolecules
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