Direct Copolymerization of CO2 and Diols

Masazumi Tamura, Kazuki Ito, Masayoshi Honda, Yoshinao Nakagawa, Hiroshi Sugimoto, Keiichi Tomishige

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

Direct polymerization of CO2 and diols is promising as a simple and environmental-benign method in place of conventional processes using high-cost and/or hazardous reagents such as phosgene, carbon monoxide and epoxides, however, there are no reports on the direct method due to the inertness of CO2 and severe equilibrium limitation of the reaction. Herein, we firstly substantiate the direct copolymerization of CO2 and diols using CeO 2 catalyst and 2-cyanopyridine promotor, providing the alternating cooligomers in high diol-based yield (up to 99%) and selectivity (up to >99%). This catalyst system is applicable to various diols including linear C4-C10 α,ω-diols to provide high yields of the corresponding cooligomers, which cannot be obtained by well-known methods such as copolymerization of CO2 and cyclic ethers and ring-opening polymerization of cyclic carbonates. This process provides us a facile synthesis method for versatile polycarbonates from various diols and CO2 owing to simplicity of diols modification.

Original languageEnglish
Article number24038
JournalScientific reports
Volume6
DOIs
Publication statusPublished - 14 Apr 2016

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