CURING OF DIGLYCIDAL ESTERS OF BISPHENOLS WITH ACID HARDENERS

  • Givi Papava Professor, Doctor, Chief Scientific researcher, Petre Melikishvili Institute of Physical and Organic Chemistry of Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia https://orcid.org/0000-0002-8837-4909
  • Nora Dokhturishvili Doctor, Research worker, Petre Melikishvili Institute of Physical and Organic Chemistry of Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia https://orcid.org/0000-0002-6021-1120
  • Nazi Gelashvili Doctor, Research worker, Petre Melikishvili Institute of Physical and Organic Chemistry of Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia
  • Ia Chtrekashvili Doctor, Senior researcher, Petre Melikishvili Institute of Physical and Organic Chemistry of Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia https://orcid.org/0000-0002-6673-191X
  • Ketevan Papava Doctor, Petre Melikishvili Institute of Physical and Organic Chemistry of Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia https://orcid.org/0000-0002-5212-9362
  • Ketevan Archvadze Doctor, Petre Melikishvili Institute of Physical and Organic Chemistry of Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia https://orcid.org/0000-0002-7796-4137
DOI: https://doi.org/10.31435/rsglobal_ws/30072021/7631
Keywords: polymer,oligomer, bisphenol, norbornan, diaminodiphenylsulphon, thermomechanicalcurves,glycidic, polycyclic, anhydride, thrrmogravimetric, analysis, thermal, heat stability, structure, hardener, cyclic

Abstract

The unique properties of epoxy polymers have led to their wide application in various fields of modern technology. The influence of the structure of bisphenols on the properties of epoxy polymers, especially thermal ones, is known. However, the chemical structure of the hardener also affects the properties of cured epoxy polymers. As hardeners, we used acid hardeners of various structures: anhydrides of maleic, phthalic, pyromellite, methyltetrahydrophthalic and other acids. The following hardeners give high results in heat resistance: pyromellite and methyltetrahydrophthalic anhydrides. Polymers obtained by curing with these hardeners are deformed in the temperature range of 220-245°C. The use of these hardeners gives high results in terms of thermal stability. These polymers are formed by curing these components. It is known that the properties of epoxy polymers depend on the chemical structure of the glycide ether. There was some interest in investigating the influence on the properties of epoxy polymers as a chemical structure, as well as the nature of hardeners. For this purpose, diglycidal esters based on bisphenols were synthesized.

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Published
2021-06-23
Citations
How to Cite
Givi Papava, Nora Dokhturishvili, Nazi Gelashvili, Ia Chtrekashvili, Ketevan Papava, & Ketevan Archvadze. (2021). CURING OF DIGLYCIDAL ESTERS OF BISPHENOLS WITH ACID HARDENERS. World Science, (7(68). https://doi.org/10.31435/rsglobal_ws/30072021/7631
Issue
No 7(68) (2021): World Science
Section
Chemistry

Copyright (c) 2021 Givi Papava, Nora Dokhturishvili, Nazi Gelashvili, Ia Chtrekashvili, Ketevan Papava, Ketevan Archvadze

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