| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
대학원생 구두발표 |
| 제목 |
MorphologicalControl of Binary Block Copolymer Micelle Complexes Employing pH-Tunable Interparticle Interaction in Dilute Aqueous Media |
| 초록 |
The morphology of charged block copolymer micelle complexes, consisting of poly(styrene-b-acrylic acid)(PS-b-PAA) and poly(styrene-b-4-vinyl pridine)(PS-b-P4VP)micelles, was controlled by pH of aqueous solvent. The charge densities of corona blocks (either PAA or P4VP blocks) dispersed in water were quite sensitive to solution pH. The high pH region (pH>6.5) is particularly interesting in the present case due to the formation of spherical micelle superlattices since the degree of ionization of the P4VP blocks is almost negligible. These spherical clusters were then slowly transformed into different morphologies when the solution pH was adjusted to the range where both of the corona blocks are oppositely charged. The present study demonstrates that the kinetic pathway for the formation and transformation of micelle complexes at various solution pHs is significantly important for the control of packing symmetry. |
| 저자 |
이미숙1, 홍진기2, 차국헌3
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| 소속 |
1지능형 유도조합체 연구단, 2에너지환경 화학융합기술 전공, 3화학생물공학부 |
| 키워드 |
Block Copolymer Micelle; Interparticle Interaction
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| E-Mail |
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