Synthesis and Polymerization Kinetics of Rigid Tricyanate Ester
A new rigid tricyanate ester consisting of seven conjugated aromatic units is synthesized, and its structure is confirmed by X-ray analysis. This ester undergoes thermally stimulated polymerization in a liquid state. Conventional and temperature-modulated differential scanning calorimetry techniques...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/13/11/1686 |
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| author | Andrey Galukhin Roman Nosov Ilya Nikolaev Elena Melnikova Daut Islamov Sergey Vyazovkin |
| author_facet | Andrey Galukhin Roman Nosov Ilya Nikolaev Elena Melnikova Daut Islamov Sergey Vyazovkin |
| author_sort | Andrey Galukhin |
| collection | DOAJ |
| description | A new rigid tricyanate ester consisting of seven conjugated aromatic units is synthesized, and its structure is confirmed by X-ray analysis. This ester undergoes thermally stimulated polymerization in a liquid state. Conventional and temperature-modulated differential scanning calorimetry techniques are employed to study the polymerization kinetics. A transition of polymerization from a kinetic- to a diffusion-controlled regime is detected. Kinetic analysis is performed by combining isoconversional and model-based computations. It demonstrates that polymerization in the kinetically controlled regime of the present monomer can be described as a quasi-single-step, auto-catalytic, process. The diffusion contribution is parameterized by the Fournier model. Kinetic analysis is complemented by characterization of thermal properties of the corresponding polymerization product by means of thermogravimetric and thermomechanical analyses. Overall, the obtained experimental results are consistent with our hypothesis about the relation between the rigidity and functionality of the cyanate ester monomer, on the one hand, and its reactivity and glass transition temperature of the corresponding polymer, on the other hand. |
| first_indexed | 2024-03-10T11:10:24Z |
| format | Article |
| id | doaj.art-7f31957e5e5b476e9cb7eefa6e65d15a |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T11:10:24Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-7f31957e5e5b476e9cb7eefa6e65d15a2023-11-21T20:51:48ZengMDPI AGPolymers2073-43602021-05-011311168610.3390/polym13111686Synthesis and Polymerization Kinetics of Rigid Tricyanate EsterAndrey Galukhin0Roman Nosov1Ilya Nikolaev2Elena Melnikova3Daut Islamov4Sergey Vyazovkin5Alexander Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya Str. 18, 420008 Kazan, RussiaAlexander Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya Str. 18, 420008 Kazan, RussiaAlexander Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya Str. 18, 420008 Kazan, RussiaAlexander Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya Str. 18, 420008 Kazan, RussiaArbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, 8 Arbuzov Street, 420088 Kazan, RussiaAlexander Butlerov Institute of Chemistry, Kazan Federal University, Kremlevskaya Str. 18, 420008 Kazan, RussiaA new rigid tricyanate ester consisting of seven conjugated aromatic units is synthesized, and its structure is confirmed by X-ray analysis. This ester undergoes thermally stimulated polymerization in a liquid state. Conventional and temperature-modulated differential scanning calorimetry techniques are employed to study the polymerization kinetics. A transition of polymerization from a kinetic- to a diffusion-controlled regime is detected. Kinetic analysis is performed by combining isoconversional and model-based computations. It demonstrates that polymerization in the kinetically controlled regime of the present monomer can be described as a quasi-single-step, auto-catalytic, process. The diffusion contribution is parameterized by the Fournier model. Kinetic analysis is complemented by characterization of thermal properties of the corresponding polymerization product by means of thermogravimetric and thermomechanical analyses. Overall, the obtained experimental results are consistent with our hypothesis about the relation between the rigidity and functionality of the cyanate ester monomer, on the one hand, and its reactivity and glass transition temperature of the corresponding polymer, on the other hand.https://www.mdpi.com/2073-4360/13/11/1686cyanate esterspolymerization kineticsvitrificationdiffusion controlthermal analysisisoconversional kinetic analysis |
| spellingShingle | Andrey Galukhin Roman Nosov Ilya Nikolaev Elena Melnikova Daut Islamov Sergey Vyazovkin Synthesis and Polymerization Kinetics of Rigid Tricyanate Ester Polymers cyanate esters polymerization kinetics vitrification diffusion control thermal analysis isoconversional kinetic analysis |
| title | Synthesis and Polymerization Kinetics of Rigid Tricyanate Ester |
| title_full | Synthesis and Polymerization Kinetics of Rigid Tricyanate Ester |
| title_fullStr | Synthesis and Polymerization Kinetics of Rigid Tricyanate Ester |
| title_full_unstemmed | Synthesis and Polymerization Kinetics of Rigid Tricyanate Ester |
| title_short | Synthesis and Polymerization Kinetics of Rigid Tricyanate Ester |
| title_sort | synthesis and polymerization kinetics of rigid tricyanate ester |
| topic | cyanate esters polymerization kinetics vitrification diffusion control thermal analysis isoconversional kinetic analysis |
| url | https://www.mdpi.com/2073-4360/13/11/1686 |
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