Polymerization of Norbornene via an Iron-Based Complex/MAO Catalytic System

作     者：MI Xia MA Zhi YAN Wei-dong LIU Yuan-xia WANG Hang KE Yu-cai HU You-liang 

作者机构：State Key Lab of Engineering PlasticsCenter for Molecular ScienceBeijing Laboratory of CatalysisCNPC Key Laboratory of CatalysisInstitute of ChemistryChinese Academy of SciencesBeijing 100080P.R.China Graduate School of Chinese Academy of SciencesBeijing 100080 Institute of Polymer Science and EngineeringHebei University of TechnologyTianjin 300130P.R.China 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究(英文版))

年 卷 期：2002年第18卷第4期

页      面：462-465页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：Supported by the Special Funds for Major State Basic Research Projects( No.G19990 64 80 0 ) the National NaturalScience Foundation of China( No.2 973 4141)  and SKL EP ( 0 0 62 )  SINOPEC and CNPC 

主　　题：Polynorbornene Iron-based complex Vinyl addition polymer Short-range order Norbornene polymerization 

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/CH_2Cl_2 volume ratio, on the activity, intrinsic viscosity and T_g were also studied.