| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
액정/LCD 재료 |
| 제목 |
Novel liquid crystal block copolymers and their applications as sensors |
| 초록 |
The amphiphilic liquid crystalline block copolymers of LCnP-b-PNIPAM (and LCnP-b-PAA) (n = 3, 6, 11, LCnP = poly(n-(4-cyanobiphenyl-4’-oxy)(CH2)n acrylate), PNIPAM = poly(N-isopropylacrylamide), PAA= poly(acrylic acid)) were synthesized by using a RAFT polymerization method. A TEM grid on the OTS coated glass was used for a sensor frame. LCnP-b-PNIPAM at the interface with 5CB made 5CB to be aligned perpendicular to the interface at lower than LCST of PNIPAM but 5CB became parallel to the surface at between LCST and Tni (36 °C) of 5CB. The shrinkage of PNIPAM and PAA blocks at above LCST and low pH changed the homeotropic to planar orientation by cooperative motion of 5CB at the interface. These results indicate that these LC TEM cells may be used as sensors which can detect environmental stimuli. |
| 저자 |
박수영1, 이동열1, 서정민1, Waliullah Khan2
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| 소속 |
1경북대, 2경북대하교 고분자공학과 |
| 키워드 |
Block copolymer; Liquid crystal; sensor
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| E-Mail |
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