CoChat
Sign Up
Cited by 122Carbon dioxide utilization in catalysisbiodegradable polymer synthesis and propertiesCarbon Dioxide Capture Technologies

The DOI matches its Crossref record; 69 of the 69 references it cites were found in a registry or an index.

Direct Copolymerization of CO2 and Diols

Open access
Tamura, Masazumi, Ito, Kazuki, Honda, Masayoshi, Nakagawa, Yoshinao, Sugimoto, Hiroshi, Tomishige, Keiichi·2016·Scientific Reports
DOI 10.1038/srep24038PMC PMC4831014
Open this paper in CoChat — free accountOpen PDF

Abstract

Direct polymerization of CO 2 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 CO 2 and severe equilibrium limitation of the reaction. Herein, we firstly substantiate the direct copolymerization of CO 2 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 CO 2 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 CO 2 owing to simplicity of diols modification.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/srep24038

Cites

69 of 69 references verified0 citation errors · 0 not checkable

Statistics

Figures

Figure 1 Synthesis methods of polycarbonates.
Figure 1 Synthesis methods of polycarbonates.CC BY · PubMed Central
Figure 2 MALDI-TOF mass spectrum of the products from CO2 and 1,4-butanediol using CeO2 and 2-cyanopyridine.
Figure 2 MALDI-TOF mass spectrum of the products from CO2 and 1,4-butanediol using CeO2 and 2-cyanopyridine.CC BY · PubMed Central
Figure 3 Time-course of direct polymerization of 1,4-butanediol and CO2 using CeO2 catalyst and 2-cyanopyridine. (a) Conversion and selectivity (•: conversion, ○: selectivity to oligomer, ▵: selectivity to 4-hydroxybutyl picolinate. (b) Mn and Mw/Mn (⋄: Mn, ♦: Mw/Mn). Reaction Conditions: CeO2 0.17 g, 1,4-butanediol 10 mmol, 2-cyanopyridine 100 mmol, CO2 5 MPa (at r.t.), 403 K.
Figure 3 Time-course of direct polymerization of 1,4-butanediol and CO2 using CeO2 catalyst and 2-cyanopyridine. (a) Conversion and selectivity (•: conversion, ○: selectivity to oligomer, ▵: selectivity to 4-hydroxybutyl picolinate. (b) Mn and Mw/Mn (⋄: Mn, ♦: Mw/Mn). Reaction Conditions: CeO2 0.17 g, 1,4-butanediol 10 mmol, 2-cyanopyridine 100 mmol, CO2 5 MPa (at r.t.), 403 K.CC BY · PubMed Central
Figure 4 Proposed reaction mechanism of the formation of cooligomers from 1,4-butanediol and CO2 using CeO2 catalyst and 2-cyanopyridine.
Figure 4 Proposed reaction mechanism of the formation of cooligomers from 1,4-butanediol and CO2 using CeO2 catalyst and 2-cyanopyridine.CC BY · PubMed Central

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Research works printed but not linked: 1

  1. Tomishige, K. et al. Catalytic performance and properties of ceria based catalysts for cyclic carbonate synthesis from glycol and carbon dioxide. Green Chem. 6, 206–214 (2004). · DOI

Cited by

Sorted by citations

See all 122

Related

See all

Metadata

Authors
Tamura, M., Ito, K., Honda, M., Nakagawa, Y., Sugimoto, H., & Tomishige, K.
Affiliations
  • Tohoku University (JP)
  • Tokyo University of Science (JP)
Corresponding author
  • Tamura, Masazumi
  • Tomishige, Keiichi
ORCID
Venue
Scientific Reports
Publisher
Springer Science and Business Media LLC
Published
2016-04-14
Volume
6
Issue
1
Pages
24038-24038
ISSN
2045-2322 (ISSN-L)
DOI
10.1038/srep24038
PMC
PMC4831014
OpenAlex
W2337703519
Cited by
122
References
69
Citations by year
2026: 5 · 2025: 9 · 2024: 14 · 2023: 10 · 2022: 15 · 2021: 17 · 2020: 18 · 2019: 9 · 2018: 14 · 2017: 7 · 2016: 4
FWCI
4.10
Type
journal article
Language
en
Open access
Licence
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • ENEOS Hydrogen Trust Fund
  • Japan Society for the Promotion of Science (16K14050)
  • Precursory Research for Embryonic Science and Technology
Topics
  • Physical Sciences › Chemical Engineering › Process Chemistry and Technology › Carbon dioxide utilization in catalysis
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Physical Sciences › Chemical Engineering › Filtration and Separation › Carbon Dioxide Capture Technologies
Keywords
diols, copolymerization, cerium oxide catalyst, alternating copolymers, polycarbonate, α,ω-diols, CO2 utilization

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review