| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 가을 (10/24 ~ 10/26, 대구 EXCO) |
| 권호 |
24권 2호, p.1073 |
| 발표분야 |
고분자(Polymer) |
| 제목 |
Thickness Dependent Phase Transition Behavior of Block Copolymer in Film Geometry |
| 초록 |
We investigated the phase transition behavior in cylinder- and lamella-forming polystyrene-b-poly(2-vinylpyridine) (PS-b-P2VP) films and its thickness dependence. Cylindrical and lamellar microdomains oriented parallel to the substrate are generated by a preferential wetting condition. We present the thickness dependent phase transition behavior using ex-situ grazing incidence small-angle x-ray scattering (GISAXS). The order to disorder transition temperature (TODT) remarkably increases as the film thickness decreases less than a critical thickness above which the TODT of the films are independent film thickness. Our numerical calculation utilizing integral version of self-consistent field theory (SCFT) is qualitatively consistent with the experimental results displaying an increase in TODT of the BCP films. |
| 저자 |
김영식1, 용대성2, 안형주3, 김재업2, 류두열1
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| 소속 |
1연세대, 2UNIST, 3포항가속기(연) |
| 키워드 |
고분자물성 |
| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
