location: Current position: Home >> Scientific Research >> Paper Publications

Synthesis of Chiral Sulfur-Containing Polymers: Asymmetric Copolymerization of meso-Epoxides and Carbonyl Sulfide

Hits:

Indexed by:期刊论文

First Author:Yue, Tian-Jun

Correspondence Author:Ren, WM; Lu, XB (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, 2 Linggong Rd, Dalian 116024, Peoples R China.

Co-author:Ren, Wei-Min,Chen, Li,Gu, Ge-Ge,Liu, Ye,Lu, Xiao-Bing

Date of Publication:2018-09-24

Journal:ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Included Journals:PubMed、SCIE

Volume:57

Issue:39

Page Number:12670-12674

ISSN No.:1433-7851

Key Words:carbonyl sulfide; desymmetrization; cobalt; polymers; synthetic methods

Abstract:Synthesis of chiral sulfur-containing polymers was realized for the first time by the asymmetric alternating copolymerization of achiral meso-epoxides with carbonyl sulfide (COS) using catalyst systems based on enantiopure binaphthol-linked dinuclear Co-III complexes under mild reaction conditions. The resultant poly(monothiocarbonate)s have main-chain chirality and more than 99% isotacticity. Notably, the stereoregular copolymers are typical semicrystalline thermoplastics with high melting temperatures up to 232 degrees C. Additionally, these sulfur-containing polymers have good optical properties with refractive indices of up to 1.56 and Abbe's numbers of up to 43.

Pre One:Kinetic Study and Nonlinear Phenomenon during the Copolymerization of CO2 with meso-Epoxides Catalyzed by Various Bimetallic CoIII Complexes

Next One:Unveiling chain-chain interactions in CO2-based crystalline stereocomplexed polycarbonates by solid-state NMR spectroscopy and DFT calculations