Rheological Properties of Gel Systems Based on Gamma-Irradiated Lightly Crosslinked Polyacrylic Acid

The effect of γ-irradiation of the gelling agent Carbomer 141G, which is lightly crosslinked polyacrylic acid, on the rheological properties of gels based on the carbomer has been studied. It has been found that an increase in the dose of γ-irradiation in air has a destructive effect on the polymer,...

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Published inHigh energy chemistry Vol. 57; no. 6; pp. 494 - 497
Main Authors Abramov, V. A., Gataullin, A. R., Bogdanova, S. A., Demidov, S. V., Kemalov, R. A., Allayarov, S. R.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.12.2023
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Crosslinking
Gamma irradiation
Gels
Physical Chemistry
Polyacrylic acid
Radiation Chemistry
Radiation dosage
Rheological properties
Viscosity
polyacrylic acid
viscosity
rheological properties
degradation
carbomer
γ-irradiation
gel
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Summary:The effect of γ-irradiation of the gelling agent Carbomer 141G, which is lightly crosslinked polyacrylic acid, on the rheological properties of gels based on the carbomer has been studied. It has been found that an increase in the dose of γ-irradiation in air has a destructive effect on the polymer, leading to a decrease in rheological parameters, such as viscosity, yield strength, and hysteresis area. Irradiation of the carbomer in air with doses greater than 300 kGy leads to a significant decrease or the complete loss of its gel-forming properties. At the same time, irradiation of the carbomer with the same dose in vacuum causes as small a decline in viscosity as 2% compared to the initial systems. It has been established that the optimal gelling agent for obtaining stable antibacterial gels is the carbomer irradiated with a dose of 30 kGy.
ISSN:0018-1439
1608-3148
DOI:10.1134/S0018143923060012