Premium
A Bis(phenoxy‐imine)Zr Complex for Ultrahigh‐Molecular‐Weight Amorphous Ethylene/Propylene Copolymer
Author(s) -
Ishii Seiichi,
Saito Junji,
Matsuura Sadahiko,
Suzuki Yasuhiko,
Furuyama Rieko,
Mitani Makoto,
Nakano Takashi,
Kashiwa Norio,
Fujita Terunori
Publication year - 2002
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20020801)23:12<693::aid-marc693>3.0.co;2-6
Subject(s) - copolymer , amorphous solid , polymer chemistry , imine , ethylene , polystyrene , materials science , chemistry , polymer , organic chemistry , catalysis , composite material
A new bis(phenoxy‐imine)Zr complex has been developed. This complex in conjunction with i Bu 3 Al/Ph 3 CB(C 6 F 5 ) 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.