| 학회 | 한국고분자학회 |
| 학술대회 | 2001년 봄 (04/13 ~ 04/14, 한양대학교) |
| 권호 | 26권 1호, p.4 |
| 발표분야 | 고분자 합성 |
| 제목 | Precision Synthesis and Aggregation Behavior of Novel Silicon-containing Amphiphilic Block Copolymers |
| 초록 | Amphiphilic block copolymers have recently attracted attention because they form various nanostructures by aggregations. Polycarbosilanes, which contain Si-C bonds in backbones, exhibit high thermal and chemical stability and have high flexibility and hydrophobicity. In the present study, we developed a novel method to synthesize amphiphilic carbosilane block copolymers and studied their aggregation behavior in solution and at air-water interface. Amphiphilic block copolymers of poly(1,1-dialkylsilabutanes)-block-poly(2-hydroxyethylmethacrylate) poly(SB-b-HEMA) were synthesized via a living anionic polymerization. The resultant copolymers were soluble in methanol as well as in nonpolar solvent such as chloroform or toluene, indicationg to be nonionic amphiphilic block copolymers. Small-angle X-ray scattering (SAXS) profiles of poly(SB-b-HEMA) indicate that these copolymers form spherical micelles in methanol. and also the aggregation numbers of the micelles strongly depend on the polymer compositions. A spread monolayer of poly(SB-b-HEMA) on water surface was investigated by X-ray reflectivity (XR) measurements. Clear Kiesig fringes were observed up to the third order in the XR curve. This fact means the formation of the smooth-faced monolayer on water surface with high uniformity of thickness. |
| 저자 | Hitoshi Yamaoka1, Hideki Matsuoka*2, Kozo Matsumoto*3 |
| 소속 | 1Department of Materials Science, 2The Univ. of Shiga Prefecture, 3Hikone 522-8533 |
| 키워드 | |
| VOD | VOD 보기 |
