화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터)
권호 38권 2호
발표분야 Neutron & X-ray Scattering for Polymer Science
제목 The Composition-dependent Phase Behaviors in Binary Blends of PS-b-PnBMA and PS-b-PnHMA
초록 We investigated the phase behaviors of block copolymer blends composed of the polystyrene-b-poly(n-butyl methacrylate) (PS-b-PnBMA) and polystyrene-b-poly(n-hexyl methacrylate) (PS-b-PnHMA), using small-angle neutron scattering (SANS), small-angle x-ray scattering (SAXS), and depolarized light scattering (DPLS). A miscible phase between the PnBMA and PnHMA blocks in the BCP blends allows the various composition-dependent phase behaviors. Intriguingly, a closed-loop phase transition was found in nearly symmetric composition of the miscible PS-b-PnBMA/PS-b-PnHMA blends from lower disorder-to-order transition (LDOT) to order-to-disorder transition (ODT) behaviors with increasing amount of PS-b-PnHMA.
저자 안형주, 류두열, 이용훈, 이호연
소속 연세대
키워드 BLOCK COPOLYMER; CLOSED-LOOP; PHASE BEHAIVOR; POLYMER BLENDS
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