| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 가을 (10/07 ~ 10/08, 대구 EXCO) |
| 권호 |
35권 2호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Micellar structures and properties of poly (N-isopropylacrylamide)-b-SGLCP block copolymer in water |
| 초록 |
A novel diblock copolymer of poly(N-isopropylacrylamide)-b-poly(4-cyanobiphenyl-4-oxyundecylacrylate) (PNIPAAm-b-LC11P) was synthesized by reversible addition fragmentation chain transfer (RAFT) polymerization. PNIPAAm-b-LC11P was formed into the core-shell micelles in an aqueous solution, which consisted of the hydrophobic LC11P block in the core and hydrophilic PNIPAM block in the shell with critical micelle concentration of 0.043 mg/ml. The hydrophobic 4-cyano-4´-pentylbiphenyl (5CB, nematic liquid crystal (LC)) was also added into the aqueous solution to incorporate LC monomers in the micelle core. The size of the micelles increased as the concentration of the 5CB increased indicating that the 5CB was successfully located in the core. It also showed a step-wise decrease at ~ 33 oC as temperature increased (or vice versa) due to LCST behavior of PNIPAM. |
| 저자 |
왈리울라, 박수영, 서정민
|
| 소속 |
경북대 |
| 키워드 |
Side group liquid crystal polymer (SGLCP); RAFT; 5CB; Core-shell micelle; LCST; Thermo-responsive
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| E-Mail |
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