화학공학소재연구정보센터
Macromolecules, Vol.49, No.18, 6768-6778, 2016
Redox Switchable Copolymerization of Cyclic Esters and Epoxides by a Zirconium Complex
A zirconium precatalyst, (salfan)Zr((OBu)-Bu-t)(2) (salfan = 1,1'-di(2-tert-butyl-6-N- methylmethylenephenoxy)ferrocene), shows activity for the redox-controlled block copolymerization of L-lactide and cyclohexene oxide. The role of the oxidant is examined, and several diblock (AB and BA) and triblock copolymers (ABA and BAB) were synthesized and characterized.