| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 | 30권 1호, p.215 |
| 발표분야 | 복합재료 |
| 제목 | Synthesis and Characterization of High-Temperature Organophilic Layered Silicates(OLS) Modified with Oligo sulfone |
| 초록 | The representative nanosized fillers for polymeric nanocomposites are the organophilic layered silicates(OLS)1, but commercially available OLS modified with alkyl chains begins to thermally degrade at the temperature below 250℃. The high temperature engineering plastics such as polysulfone, however, are usually processed at the temperatures above 300℃, implying that the commercially available OLS’s are not suitable for the preparation of polyimide nanocomposites2 because thermally fragile modifiers in the silicates are degraded even below processing temperature. In this work, we prepared OLS based on oligomeric sulfone, and investigated thermal characteristics of different type of OLS. Layered Silicate were modified through ion exchange reaction after the synthesis of aminated oligo sulfone. The novel high temperature OLS were characterized by AAS(Atomic Absorption Spectroscopy), FT-IR, WAXD, and TEM. We also prepared polysulfone nanocomposites, and studied the effects of the OLS on the thermal properties of the polyimide nanocomposites. Figure 1. TEM imige of Organophilic layered silicates(OLS) Reference 1. Zhu-Mei Liang, Jie Yin *, Hong-Jie Xu Polymer 44, 1391(2003). 2. D.M.Deloziera, R.A.Orwolla, J.F.Cahoona, N.J. Johnstonb, J.G. Smith Jr b, J.W.Connell b,* Polymer 43, 813 (2002) |
| 저자 | 한지연1, 원종찬1, 이재흥1, 서경도2, 김용석1 |
| 소속 | 1한국화학(연), 2한양대 |
| 키워드 | Organophilic Layered Silicate(OLS); Nanocomposite; Polysulfone |
