Synthesis of Chiral Sulfur-Containing Polymers: Asymmetric Copolymerization of meso-Epoxides and Carbonyl Sulfide
发表时间：2019-03-12
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- 论文类型：
- 期刊论文
- 第一作者：
- Yue, Tian-Jun
- 通讯作者：
- Ren, WM; Lu, XB (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, 2 Linggong Rd, Dalian 116024, Peoples R China.
- 合写作者：
- Ren, Wei-Min,Chen, Li,Gu, Ge-Ge,Liu, Ye,Lu, Xiao-Bing
- 发表时间：
- 2018-09-24
- 发表刊物：
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
- 收录刊物：
- PubMed、SCIE
- 文献类型：
- J
- 卷号：
- 57
- 期号：
- 39
- 页面范围：
- 12670-12674
- ISSN号：
- 1433-7851
- 关键字：
- carbonyl sulfide; desymmetrization; cobalt; polymers; synthetic methods
- 摘要：
- 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.
- 是否译文：
- 否
