| 학회 |
한국화학공학회 |
| 학술대회 |
2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터) |
| 권호 |
24권 1호, p.5 |
| 발표분야 |
고분자 |
| 제목 |
Temperature-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) (PS-b-P4VP) block copolymer (BCP) 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, 구강희1, 신재만1, 한정훈1, 박찬호1, 이기라2, 장세규3, 김범준1
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| 소속 |
1한국과학기술원, 2성균관대, 3한국과학기술(연) |
| 키워드 |
고분자물성; 기능성고분자; 고분자복합재료
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| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
