Hits:

Indexed by:期刊论文

Date of Publication:2017-10-01

Journal:POLYMERS

Included Journals:SCIE、EI、Scopus

Volume:9

Issue:10

ISSN No.:2073-4360

Key Words:carbonyl sulfide; epoxide; iron catalyst; poly(monothiocarbonate)s

Abstract:An iron(III) complex of tetradentate N,N-disubstituted bis(aminophenoxide) (designated as salan, a saturated version of the corresponding salen ligand) with a sterically hindered organic base anchored on the ligand framework, can selectively mediate the conversion of carbonyl sulfide to sulfur-containing polymers by the copolymerization with epoxides. This single-site catalyst exhibits broad substrate scope, and the resultant copolymers have completely alternating structures. In addition, this catalyst is efficient in producing diblock copolymers, suggesting a living polymerization nature.