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
Document Type:
J
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.
Translation or Not:
no
