New phenoxyketimine titanium complexes: combining isotacticity and living behavior in propylene polymerization
AF Mason, GW Coates
Index: Mason, Andrew F.; Coates, Geoffrey W. Journal of the American Chemical Society, 2004 , vol. 126, # 50 p. 16326 - 16327
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Citation Number: 143
Abstract
A series of titanium bis (phenoxyketimine) olefin polymerization catalysts were synthesized and screened for propylene polymerization. The phenoxyketimine ligands contain pentafluorophenyl N-aryl groups and ortho-phenol substituents of varying size. Catalysts with ortho-phenol substituents of intermediate size produce living, substantially isotactic polypropylene. The living nature of these catalyst systems is demonstrated through the ...
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