| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Stimuli-Responsive, Shape-Transforming Nanostructured Particles |
| 초록 |
Recently, colloidal particles that exhibit real-time tailored properties in response to external stimulus have recently been in the spotlight due to their diverse range of applications. Herein, we developed a simple and practical method for producing colloidal particle with temperature-driven transformation of shape and morphology via temperature-dependent assembly of polystyrene-b-poly(4-vinylpyridine) block copolymer and poly(N-isopropylacryamide) (PNIPAM) in an chloroform-in-water emulsion. Depending on the surrounding temperature, convex lens-shaped particle and pupa-like particle can be prepared by precise positioning of PNIPAM. At the lower temperature than LCST of PNIPAM, PNIPAM was dissolved from chloroform to water, producing convex lens-shaped particles with vertical cylinders. In contrast, the PNIPAM was localized preferentially in the P4VP domains in chloroform when the temperature is higher than LCST of PNIPAM, producing pupa-like particles with axially stacked lamellar. |
| 저자 |
이준혁1, 김범준1, 구강희1, 신재만1, 이영준1, 이기라2, 장세규3, Kin Liao4
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| 소속 |
1KAIST, 2성균관대, 3KIST, 4Khalifa Univ. |
| 키워드 |
stimuli-responsive; colloidal particle; block copolymer
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| E-Mail |
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