| 학회 | 한국고분자학회 |
| 학술대회 | 2002년 봄 (04/12 ~ 04/13, 서울대학교) |
| 권호 | 27권 1호, p.74 |
| 발표분야 | 고분자 합성 |
| 제목 | Preparation of Supported Dinuclear Organometallic Catalysts over MAO-treated SiO2 and Ethylene Polymerization in Hexane Slurry Process |
| 초록 | In recent years, metallocene catalysts have been focused upon as the next generation of olefin polymerization because they exhibit a high activity for olefin polymerization and the polymers produced by these catalysts have the properties different from those by Ziegler-Natta catalyst. The metallocene catalyst system is, basically, homogeneous and therefore, the majority of studies on these catalysts have concentrated on solution-phase processes. However, in order for a metallocene catalyst to be used in the prevailing slurry or gas phase processes, it is necessary to modify them to a supported form so that they can be utilized in heterogeneous systems. Since all commercial polymerization processes involving Ziegler-Natta catalysts are used in heterogeneous systems, the preparation of heterogeneous metallocene catalyst is a prerequisite for the replacement of existing processes with a new catalyst system. In this study, based upon the above rationale, new types of dinuclear organometallic catalysts were synthesized and these catalysts were impregnated over MAO-treated silica. Ethylene polymerization in hexane slurry process was carried out in order to investigate the characteristics of the supported metallocene catalysts. |
| 저자 | 조한석, 윤승웅, 최기호 |
| 소속 | 호남석유화학 대덕 (연) |
| 키워드 | |
