| 학회 |
한국고분자학회 |
| 학술대회 |
2016년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
41권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Enhanced Asymmetric Lamellar Morphology 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 (PS-b-P2VP) and polystyrene-block-polyhydroxystyrene copolymer (PS-b-PHS) blends where the hydrogen bonding occurred between P2VP and PHS showed asymmetric lamellar microdomains. Since asymmetric lamellar microdomains are formed due to the interface curvature change by favorable hydrogen bonding interaction between P2VP and PHS blocks, a large ratio of lamellar width could 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 lamellar morphology 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 |
곽종헌1, 한성현2, 문홍철3, 안성현1, 김진곤1, Victor Pryamitsyn4, Venkat Ganesan4
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| 소속 |
1포항공과대, 2삼성종합기술원, 3서울시립대, 4Univ. of Texas |
| 키워드 |
Blcok Copolymer; Blend; Hydrogen Bonding; Asymmetric Lamellae
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| E-Mail |
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