Completely Recyclable Monomers and Polycarbonate: Approach to Sustainable Polymers

被引：183

作者：

Liu, Ye ^{[1
]}

Zhou, Hui ^{[1
]}

Guo, Jia-Zhi ^{[1
]}

Ren, Wei-Min ^{[1
]}

Lu, Xiao-Bing ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116024, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2017年 / 56卷 / 17期

基金：

中国国家自然科学基金;

关键词：

carbon dioxide; depolymerization; polycarbonates; recyclable polymers; temperature switch; CARBON-DIOXIDE; OXIDE COPOLYMERIZATION; MESO-EPOXIDES; CO2; CATALYSTS; DEPOLYMERIZATION; COMPLEXES; PLASTICS;

D O I：

10.1002/anie.201701438

中图分类号：

O6 [化学];

学科分类号：

0703 ;

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.

引用

页码：4862 / 4866

页数：5

共 30 条

[1] Alexander Catherine., 2012, Economies of recycling
[2] [Anonymous], 2004, Angew. Chem, DOI DOI 10.1002/ANGE.200460442
[3] [Anonymous], 2013, ANGEW CHEM
[4] [Anonymous], 2006, ANGEW CHEM
[5] Discrete metal-based catalysts for the copolymerization CO2 and epoxides:: Discovery, reactivity, optimization, and mechanism
Coates, GW
Moore, DR
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (48) : 6618 - 6639
[6] Inquiry into the formation of cyclic carbonates during the (salen)CrX catalyzed CO2/cyclohexene oxide copolymerization process in the presence of ionic initiators
Darensbourg, Donald J.
Bottarelli, Paolo
Andreatta, Jeremy R.
[J]. MACROMOLECULES, 2007, 40 (21) : 7727 - 7729
[7] Making plastics from carbon dioxide:: Salen metal complexes as catalysts for the production of polycarbonates from epoxides and CO2
Darensbourg, Donald J.
[J]. CHEMICAL REVIEWS, 2007, 107 (06) : 2388 - 2410
[8] An Efficient Method of Depolymerization of Poly(cyclopentene carbonate) to Its Comonomers: Cyclopentene Oxide and Carbon Dioxide
Darensbourg, Donald J.
Wei, Sheng-Hsuan
Yeung, Andrew D.
Ellis, W. Chadwick
[J]. MACROMOLECULES, 2013, 46 (15) : 5850 - 5855
[9] Base initiated depolymerization of polycarbonates to epoxide and carbon dioxide co-monomers: a computational study
Darensbourg, Donald J.
Yeung, Andrew D.
Wei, Sheng-Hsuan
[J]. GREEN CHEMISTRY, 2013, 15 (06) : 1578 - 1583
[10] Thermodynamics of the Carbon Dioxide-Epoxide Copolymerization and Kinetics of the Metal-Free Degradation: A Computational Study
Darensbourg, Donald J.
Yeung, Andrew D.
[J]. MACROMOLECULES, 2013, 46 (01) : 83 - 95

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