Study of the physico-chemical properties of oligoephiramides based on 4-aminobenzoic acid
https://doi.org/10.35164/0554-2901-2023-7-8-22-25
Abstract
This work was carried out to obtain a number of aromatic oligoetheramides and to evaluate the effect of their structure on mesomorphic and thermal properties. Oligoetheramides based on 4-aminobenzoic acid (4-ABA) were synthesized by hightemperature polycondensation. The structure of the obtained compounds was identified by IR spectroscopy, the thermal parameters were determined from the data of thermogravimetric analysis (TGA), the phase transition temperatures were determined by differential scanning calorimetry (DSC), and the manifestation of the optical activity of oligoetheramide solutions was studied by optical polarization microscopy (OPM). It was revealed that the samples dissolve when heated in sulfuric acid, in dimethylformamide (DMF), dimethylacetamide (DMAA) and have limited solubility in dimethylsulfoxide (DMSO). Solutions of oligomers exhibited optical activity at crossed microscope polarizers.
About the Authors
D. V. Kochemasova
Kazan National Research Technological University
Russian Federation
Russian Federation
Kazan
D. V. Karbusheva
Kazan National Research Technological University
Russian Federation
Russian Federation
Kazan
L. K. Karimova
Kazan National Research Technological University
Russian Federation
Russian Federation
Kazan
T. R. Deberdeev
Kazan National Research Technological University
Russian Federation
Russian Federation
Kazan
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Review
For citations:
Kochemasova D.V., Karbusheva D.V., Karimova L.K., Deberdeev T.R. Study of the physico-chemical properties of oligoephiramides based on 4-aminobenzoic acid. Plasticheskie massy. 2023;1(7-8):22-25. (In Russ.) https://doi.org/10.35164/0554-2901-2023-7-8-22-25
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