Cited by 23biodegradable polymer synthesis and propertiesSynthesis and properties of polymersAdvanced Polymer Synthesis and Characterization

Dehydration Polycondensation of Dicarboxylic Acids and Diols Using Sublimating Strong Brønsted Acids

Moyori, Takaya, Tang, Tang, Takasu, Akinori·2012·Biomacromolecules

Abstract

We investigated catalytic activities of strong brønsted acids for dehydration polycondensations of dicarboxylic acids and diols, which were carried out at low temperature (<100 °C) under reduced pressure (0.3-3 mmHg). Strong Brønsted acids, bis(perfluoroalkanesulfonyl)imide and perfluoroalkanesulfonic acid, showed higher activity than p-toluenesulfonic acid or rare-earth catalysts at 60 °C. In particular, bis(nonafluorobutanesulfonyl)imide (Nf(2)NH) showed the highest activity to synthesize not only aliphatic polyester (M(n) > 19000) but also aromatic polyester (M(n) > 7000). The used Nf(2)NH was sublimated from the reaction flask during polycondensation, and the sublimate, Nf(2)NH, was extra pure so that we can reuse the catalyst without loss of the activity in the dehydration polycondensations.

Integrity signals

Registry

Crossref · 10.1021/bm300231d

Cites

31 of 31 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

  • Several classes of organocatalysts have been used to catalyze the step-growth polymerization of diols with diacids or carbonates, including strong Brønsted acids and organic bases.

    “Several classes of organocatalysts have been used to catalyze the SGP of diols with diacids or carbonates, including strong Brønsted acids such as H2SO4, triflic acid, p-toluenesulfonic acid (PTSA), bis(trifluoromethanesulfonyl)-imide (Tf2NH), 243,244 and organic bases such as TBD, 221,245-247 MTBD, 248 1-n-butyl-3-methylimidazol-2-carboxylate.249”

    From Catalysis as an Enabling Science for Sustainable Polymers (2018) · cites this paper as [244]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Moyori, T., Tang, T., & Takasu, A.
Affiliations
Nagoya Institute of Technology (JP)
Corresponding author
Takasu, Akinori
Venue
Biomacromolecules
Published
2012-04-30
Volume
13
Issue
5
Pages
1240-1243
ISSN
  • 1525-7797 (ISSN-L)
  • 1526-4602
OpenAlex
W2313236563
Cited by
23
References
31
Citations by year
2023: 1 · 2022: 2 · 2021: 2 · 2020: 1 · 2019: 1 · 2018: 3 · 2017: 4 · 2015: 3 · 2014: 3 · 2013: 3
FWCI
1.17
Type
journal article
Language
en
Open access
closed
Locations
  • Biomacromolecules (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
  • Physical Sciences › Materials Science › Polymers and Plastics › Synthesis and properties of polymers
  • Physical Sciences › Chemistry › Organic Chemistry › Advanced Polymer Synthesis and Characterization
Keywords
dicarboxylic acids, diols, catalyst recycling, aliphatic polyesters, aromatic polyesters, low-temperature polymerization
MeSH terms
Acids, Alcohols, Dehydration, Dicarboxylic Acids, Polyesters, Molecular Structure

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