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The alternating stereospecific copolymerization of ethylene with cycloolefins (cyclopentene, cycloheptene, and cyclooctene) has been investigated with a series of constrained geometry titanium catalysts (CGCs). The metallocene IndSiMe 2 ( t BuN)TiCl 2 was found to generate highly alternating and stereoregular cycloolefin-co-ethylene polymers while Me 4 CpSiMe 2...
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