| 학회 | 한국고분자학회 |
| 학술대회 | 2003년 봄 (04/11 ~ 04/12, 연세대학교) |
| 권호 | 28권 1호, p.232 |
| 발표분야 | 복합재료 |
| 제목 | Preparation and Characterization of Polymer-Modified Silica Gel Composites Based on Polyimide |
| 초록 | Polymer-modified silica gels with monodispersed surface were prepared by the reaction of silica gel with poly(maleic anhydride-styrene), polystyrene and poly(methyl methacrylate) silane coupling agents respectively. The amount of attached polymer was determined by weight loss during temperature elevation from 100 to 800℃, after keeping the sample at 100℃ for 30min. The covalent bonding of polymer and surface of silica gel was confirmed by 29Si cross-polarization magic-angle-spinning (CP/MAS) NMR spectroscopy. Polyimide/silica composite films were successfully prepared by blending poly(amic acid) and silica gel composites. Intrinsic peaks were observed from 2000 to 500cm-1 by FT-IR in the case of polyimide and polyimide/silica films. The mechanical properties and thermal properties were measured by UTM and TGA, respectively. |
| 저자 | 임지선;조성진;이주형;송기원;이장우 |
| 소속 | 부산대 |
| 키워드 | Organic-inorganic composites; Silica; Polyimide |
