摘要:
Two heterobimetallic complexes of [(TBBP)(2)Mg][(Na)(2)(THF)(4)] 1 [TTBP-H(2) = 2,2'-dihydroxy-3,3',5,5'-tetra-tert-butyl-1,1'-diphenyl] and [(TBBP)(2)Mg][(Li)(2)(THF)(4)] 2 can initiate the ring-opening polymerization of L-lactide. And the experiment results show that complex 1 can initiate the ring-opening polymerization of L-lactide under an air atmosphere with high conversion, indicated that 1 is a robust catalyst in the polymerization of L-LA. (C) 2011 Elsevier B.V. All rights reserved.