Abstract

Three kinds of bimetallic Schiff base titanium complexes with different substituent moieties on organic ligands were synthesized. Ring‐opening polymerizations (ROP) of lactides were carried out by using these titanium complexes as catalysts. The polymerization data and kinetic studies showed that complex 1a had the highest activity and complex 2a had the lowest activity for ROP of lactides. Moreover, all these three newly synthesized bimetallic titanium complexes showed higher polymerization activity and better molecular weight control than their monometallic counterparts reported in our previous work.

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