SYNTHESIS, STRUCTURAL CHARACTERIZATION, AND COLLOIDAL AND SURFACE-ACTIVE PROPERTIES OF A SURFACTANT BASED ON MONOETHANOLAMINE-MODIFIED GOSSYPOL RESIN INVESTIGATED BY FTIR AND PHYSICOCHEMICAL METHODS
Authors
Sultonov Sadulla, Kucharov Azizbek, Khalilov Sanjar, Yusupov Farkhod, Azizjon Qurbonov
Share
Annotation
In this study, a surfactant was obtained through the chemical modification of gossypol resin, formed as a by-product of cottonseed oil processing, with monoethanolamine, and its structural and surface-active properties were comprehensively investigated. The modification process was carried out stepwise in an alkaline medium, and the effect of reaction parameters on product yield was analyzed to determine the optimal conditions. The structural changes of the obtained product were analyzed using FTIR spectroscopy. The appearance of new absorption bands in the 1200-1300 cm-1 region indicated the formation of C–N bonds and confirmed the chemical incorporation of monoethanolamine into the gossypol structure.
The surface-active characteristics of the synthesized material were studied using surface tension, critical micelle concentration, foam formation, and foam stability. It was found that the material is capable of lowering surface tension, forming micelles, and forming stable foam. These characteristics point to its possible use as a flotation agent for the enrichment of coal, as well as for the extraction of valuable elements from coal processing wastes.
Keywords
Authors
Sultonov Sadulla, Kucharov Azizbek, Khalilov Sanjar, Yusupov Farkhod, Azizjon Qurbonov
Share
References:
Zhang, L., Wang, X., Li, Y. Preparation and surface properties of bio-based surfactants derived from natural resins. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2017, 522, 1–8.
Kucharov, A., Xalilov, S., Yusupov, F., Toshboboyeva, R.N., Bekturdiyev, G., Turayeva, K., Golib, T. A comprehensive technological approach for the selective recovery of aluminum oxide and rare earth elements from coal processing. EUREKA: Physics and Engineering, 2026.
Liu, H., Zhao, Y., Chen, J. Synthesis and characterization of amine-modified phenolic surfactants and their surface activity. Journal of Surfactants and Detergents, 2018, 21(4), 567–575.
Wang, Y., Li, J., Zhang, X. FTIR and surface activity study of modified natural resin-based surfactants. Journal of Applied Polymer Science, 2019, 136(15), 47325.
Chen, Z., Sun, D., Zhang, L. Surface tension and micellization behavior of bio-based surfactants in aqueous solutions. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2019, 580, 123–130.
Kucharov, A., Xalilov, S., Alikulova, M., Mamarasulov, T., Turayeva, K., Imanova, G., Farmonov, N. Scientific analysis of the development of new types of flotation reagents used in coal enrichment. EUREKA: Physics and Engineering, 2025, (2), 32–39.
Li, Q., Zhou, M., Wang, Y. Effect of amine functionalization on the physicochemical properties of bio-based surfactants. Journal of Molecular Liquids, 2020, 307, 112984.
Yakhshiyeva, Y.R., Yusupov, F.M. Synthesis of surfactants based on local raw materials and their physicochemical properties. Uzbek Chemical Journal, 2021, 2, 32–38.
Kumar, A., Singh, R., Sharma, P. Bio-based surfactants: synthesis, characterization and applications. Journal of Cleaner Production, 2021, 295, 126–140.
Zhao, X., Liu, H., Wang, L. Surface activity and foaming properties of amine-modified surfactants. Journal of Surfactants and Detergents, 2022, 25(3), 345–354.
Ahmed, S., Rahman, M., Islam, M. Development of eco-friendly surfactants from natural resources and their surface properties. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2023, 656, 130–138.
Banat, I.M., Satpute, S.K., Cameotra, S.S., Patil, R., Nyayanit, N.V. Bio-surfactants: production and applications. Critical Reviews in Biotechnology, 2018, 38(5), 718–739.
Other articles of the issue
