| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Simultaneous Control over Size, Shape, and Nanostructure of Monodisperse Block Copolymer Colloidal Particles |
| 초록 |
Functional behavior of polymeric particles is strongly influenced by their shape and size. Recently, facile approaches for shape control of polymeric particles that involve precise tuning of interfacial energies between block copolymer (BCP) and surrounding has emerged. However, achieving particle size monodispersity together with control over shape and nanostructure was not found. Here, we introduce monodisperse, shape changing BCP particles. Polystyrene-b-polybutadiene (PS-b-PB) BCP underwent self-assembly in monodisperse emulsion prepared by Shirasu Porous Glass (SPG) membrane emulsification. Depending on concentration of sodium dodecyl sulfate (SDS) surfactant, morphology change was observed from onion-like to striped ellipsoid. Formation mechanism was studied by varying particle size and molecular weight, which demonstrates interplay of particle size, chain stretching penalty and interfacial interaction of BCP altogether determines overall shape and nanostructure of a particle. |
| 저자 |
김범준1, Kin Liao2, 김용주3, 신재만1
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| 소속 |
1KAIST, 2Khalifa Univ. of Science, 3Technology and Research |
| 키워드 |
Monodisperse; ellipsoidal particle; block copolymer
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| E-Mail |
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