| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 봄 (04/12 ~ 04/13, 제주 ICC) |
| 권호 |
32권 1호 |
| 발표분야 |
고분자 합성 |
| 제목 |
Synthesis of New Liquid Crystalline Block Copolymers with Azobenzene Moieties and Poly(n-butyl acrylate) Segments Using ATRP and Their Morphologies |
| 초록 |
Homopolymers with side chain liquid crystalline (LC) units were prepared by ATRP of a new LC monomer, (CNAZOMA). The resulting polymers had low polydispersity. Optical and thermal investigation confirmed that both the monomer and the homopolymers have a smectic structure. New di- and triblock copolymers containing LC units, with different ratios of the block containing the LC monomer with azobenzene moiety, and poly(n-butyl acrylate) as a soft segment were successfully prepared using ATRP. The block copolymerization proceeded with controlled/living characteristics. The morphologies of thin films of the block copolymers cast from different solvents were examined by atomic force microscopy using different casting procedures: In particular, strong dependence on sample preparation conditions and thermal history was observed, suggesting the role of mesogenic blocks in stabilization of metastable states. |
| 저자 |
한양규1, K. Matyjaszewski2
|
| 소속 |
1한양대, 2Department of Chemistry |
| 키워드 |
block copolymer; liquid crystalline moiety; ATRP; morphology
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| E-Mail |
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