University of British Columbia, Department of Chemistry, 2036 Main Mall, Vancouver, B.C., Canada.
Chem Commun (Camb). 2013 May 14;49(39):4295-7. doi: 10.1039/c2cc33519k.
Chiral indium salen complexes are highly active, isoselective catalysts for the ring opening polymerization of racemic lactide. The polymerizations are well controlled and polymers with high molecular weights and low molecular weight distributions are obtained. Preliminary kinetic investigations with the enantiopure complex confirm enantiomorphic site control as the dominant contributor to selectivity and formation of block copolymers.
手性铟席夫碱配合物是外消旋丙交酯开环聚合的高效、高对映选择性催化剂。聚合反应得到很好的控制，得到了高分子量、低分子量分布的聚合物。对纯对映体配合物的初步动力学研究证实，手性位控制是选择性和嵌段共聚物形成的主要贡献因素。
