Completely Recyclable Monomers and Polycarbonate: Approach to Sustainable Polymers
发布时间：2019-03-12
点击次数：
- 论文类型：
- 期刊论文
- 发表时间：
- 2017-04-18
- 发表刊物：
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
- 收录刊物：
- PubMed、EI、SCIE
- 文献类型：
- J
- 卷号：
- 56
- 期号：
- 17
- 页面范围：
- 4862-4866
- ISSN号：
- 1433-7851
- 关键字：
- carbon dioxide; depolymerization; polycarbonates; recyclable polymers; temperature switch
- 摘要：
- It is of great significance to depolymerize used or waste polymers to recover the starting monomers suitable for repolymerization reactions that reform recycled materials no different from the virgin polymer. Herein, we report a novel recyclable plastic: degradable polycarbonate synthesized by dinuclear chromium-complex-mediated copolymerization of CO2 with 1-benzyloxycarbonyl-3,4-epoxy pyrrolidine, a meso-epoxide. Notably, the novel polycarbonate with more than 99% carbonate linkages could be recycled back into the epoxide monomer in quantitative yield under mild reaction conditions. Remarkably, the copolymerization/ depolymerization processes can be achieved by the ON/OFF reversible temperature switch, and recycled several times without any change in the epoxide monomer and copolymer. These characteristics accord well with the concept of perfectly sustainable polymers.
- 第一作者
- Liu, Ye
- 合写作者
- Lu, Xiao-Bing,Zhou, Hui,Guo, Jia-Zhi,Ren, Wei-Min
- 通讯作者
- Liu, Y; Lu, XB (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China.