| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Inverted Cylindrical Microdomains from Binary Block Copolymer Blends Capable of Hydrogen Bonding |
| 초록 |
A binary blend of polystyrene-block-poly(2-vinylpyridine) copolymer (PS-b-P2VP) and polystyrene-block-poly(4-hydroxystyrene) copolymer (PS-b-PHS) was studied to obtain an inverted cylindrical morphology with cylinders consisting of the major block. Both neat block copolymers with slightly asymmetric volume fraction of the PS block (fPS ∼ 0.65) showed lamellar microdomains. The blends showed phase transformation from lamellae to inverted cylinders because of hydrogen bonding between nitrogen in P2VP and hydroxyl group in PHS chains. The formation of the inverted cylinders depends on f PS in the blend and the molecular weight ratio (r) of PS-b-P2VP to PS-b-PHS because both parameters affect the interfacial curvature arising from the hydrogen bonding and chain stretching near the interface. |
| 저자 |
강석원, 김진곤
|
| 소속 |
포항공과대 |
| 키워드 |
block copolymer; self-assembly
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| E-Mail |
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