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A Bis(phenoxy‐imine)Zr Complex for Ultrahigh‐Molecular‐Weight Amorphous Ethylene/Propylene Copolymer |
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| Authors: | Seiichi Ishii Junji Saito Sadahiko Matsuura Yasuhiko Suzuki Rieko Furuyama Makoto Mitani Takashi Nakano Norio Kashiwa Terunori Fujita |
| Abstract: | A new bis(phenoxy‐imine)Zr complex has been developed. This complex in conjunction with iBu3Al/Ph3CB(C6F5)4 at 70°C produces ultrahigh‐molecular‐weight amorphous ethylene/propylene copolymer with a weight‐average molecular weight of 10 200 000 g/mol versus polystyrene standards, which represents the highest molecular weight known for linear, synthetic copolymers to date. |
| Keywords: | catalysts copolymerization elastomers polyolefins Ziegler‐Natta polymerization |