纸质出版日期:1998-4-20
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研究了茂金属催化体系Me2SiCp2MCl2/MAO(M=Zr,ti)催化乙烯与降冰片烯共聚合,考察了不同聚合条件下的共聚及乙烯动力学行为,对共聚物的结构进行了DSC,13CNMR表征.研究表明,在相同的聚合条件下,Zr较Ti有更佳的共聚合催化性能.在相近的投料比条件下,得到了降冰片烯含量和Tg均较文献高的乙烯与降冰片烯的共聚物.
The norbornene/ethylene copolymerization was investigated by using Me2SiCp2MtCl 2(Mt=Zr,Ti)/MAO catalyst system. The copolymerization Kinetics was studied under different conditions. The copolymer was characterized by DSC and 13C-NMR methods. It was found the zirconocene has better catalyst ability for copolymerization of ethylene and norbornene than titanocene. Under similar feed ratio, the copolymers with high norbornene content and glass transition temperature were synthesized compared with literature.
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