CURING OF DIGLYCIDAL ESTERS OF BISPHENOLS WITH AMINE 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
  • Ketevan Ebralidze Doctor, Chief Scientific researcher, Petre Melikishvili Institute of Physical and Organic Chemistry of Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia https://orcid.org/0000-0002-4663-6245
  • Eter Gavashelidze Doctor, Senior researcher, Petre Melikishvili Institute of Physical and Organic Chemistry of Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia https://orcid.org/0000-0002-0479-5782
  • Marina Gurgenishvili Doctor, Chief Scientific researcher, Petre Melikishvili Institute of Physical and Organic Chemistry of Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia https://orcid.org/0000-0002-2272-8380
  • Shalva Papava Doctor, Petre Melikishvili Institute of Physical and Organic Chemistry of Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia https://orcid.org/0000-0003-2959-7958
  • Nanuli Khotenashvili Petre Melikishvili Institute of Physical and Organic Chemistry of Ivane Javakhishvili Tbilisi State University https://orcid.org/0000-0001-5547-8077
DOI: https://doi.org/10.31435/rsglobal_ws/30072021/7633
Keywords: polymer,oligomer, bisphenol, norbornan, diaminodiphenylsulphon, thermomechanical curves,glycidic, polycyclic, anhydride, thrrmogravimetric, analysis, thermal, heat stability, structure, hardener, cyclic

Abstract

The effect of hardeners on the properties of cured epoxy polymers is studied. For the purpose of synthesis of polymers with increased thermal properties. Theglycide esters of polycyclic bisphenols synthesized by us were used as a diol component. Since the thermal and heat resistance of polymers, in addition to the chemical structure of bisphenols, also depend on the structure of the hardener used, amine hardeners of different chemical structure are used to improve the thermal parameters of polymers, both heat resistance and heat resistance. The influence of the chemical structure of these hardeners on the properties of epoxy polymers is studied. Cured epoxy polymers are characterized by high heat resistance. High heat resistance results are obtained by 4,4′-diaminodiphenylsulfone, benzidine, 4,4′-diaminodiphenyloxide and other aromatic diamines. Polymers obtained by curing with these hardeners are deformed in the temperature range of 220-245°C. The use of the above hardeners gives high results in terms of heat resistance. In all cases, the polymers obtained on the basis of these hardeners decrease in weight by 10% in the temperature range of 340-400°C.

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Published
2021-06-30
Citations
How to Cite
Givi Papava, Ketevan Ebralidze, Eter Gavashelidze, Marina Gurgenishvili, Shalva Papava, & Khotenashvili, N. (2021). CURING OF DIGLYCIDAL ESTERS OF BISPHENOLS WITH AMINE HARDENERS. World Science, (7(68). https://doi.org/10.31435/rsglobal_ws/30072021/7633
Issue
No 7(68) (2021): World Science
Section
Chemistry

Copyright (c) 2021 Givi Papava, Ketevan Ebralidze, Eter Gavashelidze, Marina Gurgenishvili, Shalva Papava, Nanuli Khotenashvili; Ketevan Archvadze

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