| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Shape Controllable Block Copolymer Particles Driven by Graphene Quantum Dot Surfactants |
| 초록 |
The interfacial interaction between block copolymer(BCP) chains and surfactant surrounding the emulsion droplet greatly affects the final shape and internal morphology of BCP particles. Herein, we report a strategy for controlling the shape and internal morphology of poly(styrene)-b-poly(4-vinylpyridine) (PS-b-P4VP) particles through surface-modified graphene quantum dots(GQDs) surfactants. In our system, when hexylamine-grafted GQDs were used for surfactants, GQD could not induce a neutral wetting of PS and P4VP at the particle surface, and the spherical BCP particles were produced. In contrast, when oleylamine-grafted GQD surfactants were proven to be very effective for balancing interfacial interaction between two different PS/P4VP domains of BCP particles and water, thereby producing convex lens-shaped BCP particles. The approach developed in this work could provide an attractive route to the development of GQD-based, functional polymeric materials with novel nanostructures. |
| 저자 |
김범준1, Kin Liao2, 박찬호3, 이준혁1, 신재만1, 구강희1, 양현승1
|
| 소속 |
1KAIST, 2Khalifa Univ. of Science, 3Technology and Research |
| 키워드 |
Graphene; Surfactant; Block Copolymer Particles; Emulsion
|
| E-Mail |
|
