| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
대학원생 구두발표 (발표15분) |
| 제목 |
Enhanced Asymmetric Lamellar microdomains via Strong Hydrogen Bonding of PS-b-P4VP/PS-b-PHS blend |
| 초록 |
We reported that the binary blend of asymmetric polystyrene-block-poly(2-vinylpyridine) copolymer (as-PS-b-P2VP) and polystyrene-block-polyhydroxystyrene copolymer (as-PS-b-PHS) blends where the hydrogen bonding occurred between P2VP and PHS showed asymmetric lamellar microdomains. Since asymmetric lamellae are formed due to the interface curvature change by favorable hydrogen bonding between the hydroxyl group and nitrogen atom, a large ratio of lamellar width could potentially be achieved by increasing the degree of the hydrogen bonding. We employed two kinds of binary blends (polystyrene-block-poly(4-vinylpyridine) (as-PS-b-P4VP)/as-PS-b-PHS and as-PS-b-P2VP/as-PS-b-PHS). It was observed by SAXS and TEM that as-PS-b-P4VP/as-PS-b-PHS blend which exhibits much stronger hydrogen bonding formed asymmetric lamellae at more asymmetric volume fraction where as-PS-b-P2VP/as-PS-b-PHS blend could not form and the experimental results show qualitative agreement with the SST model prediction. |
| 저자 |
Venkat Ganesan1, Victor Pryamitsyn1, 김진곤2, 문홍철2, 한성현2, 곽종헌2
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| 소속 |
1Univ. of Texas, 2포항공과대 |
| 키워드 |
Block Copolymer; Blend; Hydrogen Bonding; Asymmetric Lamellae
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| E-Mail |
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