Investigation of Changes in the Degree of Crystallinity of Polyamide-6

Samples of high-viscosity polyamide-6 granulate were investigatied by differential scanning calorimetry: (1) industrial production granulate, (2) granulate after the process of combined drying-demonomerization, (3) granulate after consecutively carried out processes of combined drying-demonomerizati...

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Bibliographic Details
Published in:Russian journal of general chemistry 2023-03, Vol.93 (3), p.766-768
Main Authors: Barannikov, M. V., Polyakov, V. S., Bazarov, Y. M., Osipova, G. V., Krivenko, K. A.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Crystal structure
Crystallinity
Degree of crystallinity
Drying
Enthalpy
Granulation
Investigations
Low molecular weights
Melting
Polyamide resins
Polyamides
Polymers
Process parameters
Selected articles originally published in Russian in Rossiiskii Khimicheskii Zhurnal (Russian Chemistry Journal)
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Summary:Samples of high-viscosity polyamide-6 granulate were investigatied by differential scanning calorimetry: (1) industrial production granulate, (2) granulate after the process of combined drying-demonomerization, (3) granulate after consecutively carried out processes of combined drying-demonomerization and remelting. The temperatures and enthalpies of melting of the original and subjected to technological thermodynamic processes polymers were determined. Changes in the crystal structure of the polymer during the combined drying-demonomerization and remelting processes have been proven. The effect of the content of low molecular weight compounds and the temperature parameters of the above processes on the degree of polymer crystallinity is shown.
ISSN:1070-3632
1608-3350
DOI:10.1134/S1070363223030350