標題: | The reactivity of epoxy/polycarbonate/BF3-MEA system |
作者: | Li, YS Chang, FC 應用化學系 Department of Applied Chemistry |
關鍵字: | epoxy;polycarbonate;boron trifluoride complex;kinetic parameter |
公開日期: | 1-三月-2001 |
摘要: | The cationic reaction of an epoxy/BF3-MEA system occurs between the oxirane group and the oxonium group, The addition of polycarbonate to the system does not cause a transesterification reaction between the carbonate group and the oxonium group, thus the molecular weight of the PC is unchanged during the reaction. PC crystallization is observed in the cured system because the epoxy monomer accelerates the PC crystallization. The eposy/BF3-MEA and epoxy/PC/BF3-MEA systems all follow the first order reaction. The PC modified systems show lower activation energy, a lower pre-exponential factor and a higher reaction rate constant. |
URI: | http://hdl.handle.net/11536/29783 |
ISSN: | 1022-9760 |
期刊: | JOURNAL OF POLYMER RESEARCH-TAIWAN |
Volume: | 8 |
Issue: | 1 |
起始頁: | 1 |
結束頁: | 7 |
顯示於類別: | 期刊論文 |