Theoretical Principles Used to Study the Formation of Polyepoxyurethaneisocyanurates. Part 2
- Authors: Kejmakx M.D.1, Ezernitskaya M.G.1, Karandy I.V.1, Askadskii A.A.1,2
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Affiliations:
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences
- National Research Moscow State University of Civil Engineering
- Issue: No 6 (2024)
- Pages: 52-59
- Section: Polymers in construction
- URL: https://journals.eco-vector.com/0585-430X/article/view/635099
- DOI: https://doi.org/10.31659/0585-430X-2024-825-6-52-59
- ID: 635099
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Abstract
The quantitative description of the effect of the resulting chemical structures of polyepoxyurethaneisocyanurates on the glass transition temperature Tg was carried out. This is done by selecting copolymer structures whose Tg value is comparable to the calculated one, and the error does not exceed 1.8–2%. The theoretical data were obtained on the basis of calculations of model structures using the “Cascade” computer program (INEOS RAS).
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About the authors
M. D. Kejmakx
A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences
Author for correspondence.
Email: kejmakh.margo@yandex.ru
Candidate of Sciences (Chemistry)
Russian Federation, MoscowM. G. Ezernitskaya
A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences
Email: ezernits@mail.ru
Candidate of Sciences (Chemistry)
Russian Federation, MoscowI. V. Karandy
A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences
Email: margaret@ineos.ac.ru
Candidate of Sciences (Chemistry)
Russian Federation, MoscowA. A. Askadskii
A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences; National Research Moscow State University of Civil Engineering
Email: andrey@ineos.ac.ru
Doctor of Sciences (Сhemistry)
Russian Federation, Moscow; MoscowReferences
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Supplementary files
Supplementary Files
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JATS XML
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Fig. 1. Compression curves for polymer samples P80 (curve 1) and P120 (curve 2) at a strain rate of 0.187 mm/min
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Fig. 2. Dependence of the yield of the gel fraction after the gelation point. The points superimposed on the curve correspond to the final curing temperatures of polymer mixtures
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Fig. 3. Dependence of the degree of crosslinking on temperature. The points on the curve correspond to the final curing temperatures of polymer mixtures
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Fig. 4. Images of microstructures of the final polymers obtained at different temperatures and durations of the polycyclotrimerization process: a – sample P80; b – sample P120
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Scheme
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Fig. 5. Dependence of deformation on temperature for a sample of the final polymer P80: 1 – experimental thermomechanical curve; 2 – differential form of thermomechanical curve
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Fig. 7. Dependence of deformation on temperature for a sample of the final polymer: a – P100; b – P110: 1 – experimental thermomechanical curve; 2 – differential form of thermomechanical curve
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Fig. 8. Dependence of deformation on temperature for a sample of the final polymer P120: 1 – experimental thermomechanical curve; 2 – differential form of thermomechanical curve
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Fig. 9. Dependence of the elastic modulus of the final polymers on temperature: curve 1 – corresponds to the sample of the final polymer P80; curve 2 – P120
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Fig. 10. Dependence of the forced elasticity limit of final polymers on temperature: curve 1 – corresponds to a sample of the final polymer P80; curve 2 – P120
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