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DOI | 10.1038/s41467-019-12333-z |
Precise synthesis of sulfur-containing polymers via cooperative dual organocatalysts with high activity | |
Zhang, Cheng-Jian; Wu, Hai-Lin; Li, Yang; Yang, Jia-Liang; Zhang, Xing-Hong | |
2019-09-20 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2018 |
卷号 | 9 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Metal-free and controlled synthesis of sulfur-containing polymer is still a big challenge in polymer chemistry. Here, we report a metal-free, living copolymerization of carbonyl sulfide (COS) with epoxides via the cooperative catalysis of organic Lewis pairs including bases (e.g.: phosphazene, amidine, and guanidine) and thioureas as hydrogen-bond donors, afford welldefined poly(monothiocarbonate)s with 100% alternating degree, > 99% tail-to-head content, controlled molecular weights (up to 98.4 kg/mol), and narrow molecular weight distributions (1.13-1.23). The effect of the types of Lewis pairs on the copolymerization of COS with several epoxides is investigated. The turnover frequencies (TOFs) of these Lewis pairs are as high as 112 h-1 at 25 degrees C. Kinetic and mechanistic results suggest that the supramolecular specific recognition of thiourea to epoxide and base to COS promote the copolymerization cooperatively. This strategy provides commercially available Lewis pairs for metal-free synthesis of sulfur-containing polymers with precise structure. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000433542100002 |
WOS关键词 | RING-OPENING POLYMERIZATION ; COMBINING HIGH-ACTIVITY ; METAL CYANIDE COMPLEX ; CARBONYL SULFIDE ; ALTERNATING COPOLYMERIZATION ; PROPYLENE-OXIDE ; REGIOSELECTIVE COPOLYMERIZATION ; CO2/EPOXIDE COPOLYMERIZATION ; STEREOCHEMISTRY CONTROL ; CYCLOHEXENE OXIDE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204552 |
专题 | 资源环境科学 |
作者单位 | Zhejiang Univ, Dept Polymer Sci & Engn, MOE Key Lab Macromol Synth & Functionalizat, Hangzhou 310028, Zhejiang, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Cheng-Jian,Wu, Hai-Lin,Li, Yang,et al. Precise synthesis of sulfur-containing polymers via cooperative dual organocatalysts with high activity[J]. NATURE COMMUNICATIONS,2019,9. |
APA | Zhang, Cheng-Jian,Wu, Hai-Lin,Li, Yang,Yang, Jia-Liang,&Zhang, Xing-Hong.(2019).Precise synthesis of sulfur-containing polymers via cooperative dual organocatalysts with high activity.NATURE COMMUNICATIONS,9. |
MLA | Zhang, Cheng-Jian,et al."Precise synthesis of sulfur-containing polymers via cooperative dual organocatalysts with high activity".NATURE COMMUNICATIONS 9(2019). |
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