高等学校化学研究 ›› 2002, Vol. 18 ›› Issue (4): 462-465.
Polymerization of Norbornene via an Iron-Based Complex/MAO Catalytic System
MI Xia1,2, MA Zhi1,2, YAN Wei-dong3, LIU Yuan-xia1,2, WANG Hang1,2, KE Yu-cai1, HU You-liang1
- 1. State Key Lab of Engineering Plastics, Center for Molecular Science, Beijing Laboratory of Catalysis, CNPC Key Laboratory of Catalysis, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China;
2. Graduate School of Chinese Academy of Sciences, Beijing 100080;
3. Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
Polymerization of Norbornene via an Iron-Based Complex/MAO Catalytic System
MI Xia1,2, MA Zhi1,2, YAN Wei-dong3, LIU Yuan-xia1,2, WANG Hang1,2, KE Yu-cai1, HU You-liang1
- 1. State Key Lab of Engineering Plastics, Center for Molecular Science, Beijing Laboratory of Catalysis, CNPC Key Laboratory of Catalysis, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China;
2. Graduate School of Chinese Academy of Sciences, Beijing 100080;
3. Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin 300130, P. R. China
摘要： Polynorbornenes were synthesized in the presence of an iron based catalyst, 2,6-bis[1-(2,6-diisopropyl-phenylimino)ethyl]pyridine iron(Ⅱ) dichloride. The FTIR, 1H NMR and 13C NMR analysis results revealed that the structure of the obtained polynorbornenes consisted of vinyl addition polymer substructures without any ring-opening structures. The polymers were amorphous with a short-range order, displayed in the WAXD(wide angle X-ray diffraction) diagrams. The glass transition temperatures ranged from 200 to 400 ℃. The effects of the polymerization reaction conditions, such as Al/Fe molar ratio and toluene/CH2Cl2 volume ratio, on the activity, intrinsic viscosity [η] and Tg were also studied.