Thermochimica Acta, volume 718, pages 179382

Mechanistic and kinetic insights into phenol-catalyzed cyclotrimerization of cyanate esters

Galukhin Andrey ¹

Nosov Roman

Taimova Guzel

Shulyatiev Alexey

Nikolaev Ilya

R. Islamov Daut

Vyazovkin Sergey

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Alexander Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlevskaya Street, 420008 Kazan, Russian Federation |

Publication type: Journal Article

Publication date: 2022-12-01

Elsevier

Journal: Thermochimica Acta

Quartile SCImago

Quartile WOS

Impact factor: 3.5

ISSN: 00406031, 1872762X

DOI: 10.1016/j.tca.2022.179382

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Physical and Theoretical Chemistry

Condensed Matter Physics

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Abstract

• Phenol-catalyzed cyclotrimerization of cyanate ester is studied • DSC, combustion calorimetry, and chromatography are employed • Kinetics is analyzed by isoconversional methodology • Important kinetic and mechanistic insights are obtained Differential scanning and combustion calorimetry in combination with isoconversional methodology and chromatography are applied to acquire kinetic and mechanistic insights into the reaction of phenol-catalyzed cyclotrimerization of cyanate ester. The only detectable reaction intermediate is found to be imidocarbonate, which is demonstrated to form in an irreversible manner. Isoconversional analysis indicates that the overall reaction kinetics at its early and late stages is respectively controlled by the irreversible formation of imidocarbonate ( E a ≈40 kJ mol −1 ) and a reaction of imidocarbonate with cyanate ester ( E a ≈70 kJ mol −1 ). Cyclotrimerization of neat imidocarbonate is analyzed as well. For this reaction, no intermediates are detected. Its overall kinetics is determined to occur as a single autocatalytic step. It is concluded that cyclotrimerization of imidocarbonate does not amount to any significant competition to the reaction between imidocarbonate and cyanate ester.

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Macromolecular Chemistry and Physics	Macromolecular Chemistry and Physics, 1, 20% Macromolecular Chemistry and Physics 1 publication, 20%
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ACS Applied Polymer Materials	ACS Applied Polymer Materials, 1, 20% ACS Applied Polymer Materials 1 publication, 20%
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American Chemical Society (ACS)	American Chemical Society (ACS), 1, 20% American Chemical Society (ACS) 1 publication, 20%
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Galukhin A. et al. Mechanistic and kinetic insights into phenol-catalyzed cyclotrimerization of cyanate esters // Thermochimica Acta. 2022. Vol. 718. p. 179382.

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Galukhin A., Nosov R., Taimova G., Shulyatiev A., Nikolaev I., R. Islamov D., Vyazovkin S. Mechanistic and kinetic insights into phenol-catalyzed cyclotrimerization of cyanate esters // Thermochimica Acta. 2022. Vol. 718. p. 179382.

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RIS Copy

TY - JOUR

DO - 10.1016/j.tca.2022.179382

UR - https://doi.org/10.1016%2Fj.tca.2022.179382

TI - Mechanistic and kinetic insights into phenol-catalyzed cyclotrimerization of cyanate esters

T2 - Thermochimica Acta

AU - Galukhin, Andrey

AU - Nosov, Roman

AU - Taimova, Guzel

AU - Shulyatiev, Alexey

AU - Nikolaev, Ilya

AU - R. Islamov, Daut

AU - Vyazovkin, Sergey

PY - 2022

DA - 2022/12/01 00:00:00

PB - Elsevier

SP - 179382

VL - 718

SN - 0040-6031

SN - 1872-762X

ER -

BibTex

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BibTex Copy

@article{2022_Galukhin,

author = {Andrey Galukhin and Roman Nosov and Guzel Taimova and Alexey Shulyatiev and Ilya Nikolaev and Daut R. Islamov and Sergey Vyazovkin},

title = {Mechanistic and kinetic insights into phenol-catalyzed cyclotrimerization of cyanate esters},

journal = {Thermochimica Acta},

year = {2022},

volume = {718},

publisher = {Elsevier},

month = {dec},

url = {https://doi.org/10.1016%2Fj.tca.2022.179382},

pages = {179382},

doi = {10.1016/j.tca.2022.179382}

}

Found error?

Publisher

Elsevier

Journal

Thermochimica Acta

Quartile SCImago

Quartile WOS

Impact factor

3.5

ISSN

00406031 (Print)
1872762X (Electronic)

Labs

Polymer Chemistry

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