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Copolymerization of ethene and dimethanooctahydronaphthalene with aluminoxane containing catalysts
Author(s) -
Kaminsky Walter,
Bark Andreas
Publication year - 1992
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990280312
Subject(s) - methylaluminoxane , norbornene , copolymer , cyclobutene , materials science , cyclopentene , polymer chemistry , catalysis , polymerization , metallocene , amorphous solid , photochemistry , polymer , ring (chemistry) , chemistry , crystallography , organic chemistry , composite material
With homogeneous catalysts on the basis of chiral metallocenes and methylaluminoxane it has become possible to polymerize cyclic olefins like cyclobutene, cyclopentene, norbornene, or dimethanonaphthalene (DMON). No ring opening reaction occurs. The crystalline polycycloalkenes show extremely high melting points between 400 and 600°C. Copolymers of DMON with ethene are amorphous. They have molecular weights between 50000 and 150000 and high glass transition points up to 160°C. These copolymers could be used as materials for optical discs and fibers.