Deuterium Labeling and Mechanistic Insights in the Polymerization of Propylene Promoted by Benzamidinate Complexes

摘要

A new epimerization mechanism was introduced for the polymerization of propylene obtained by octahedral benzamidinate complexes. Deuterium labeling showed that deuterium is transferred from a methyne to a methylene position in the polymer inducing a stereoerror and an elastic material. In addition, two active species are formed during the polymerization of propylene promoted by the octahedral bis(benzamidinate) titanium dialkyl complexes.