AP08956439 – Development of innovative water-saving technologies using new biopolymer moisture sorbents for arid climatic zones
Objective of the project: Development of new highly swelling network polymer-silicate composites based on biocompatible synthetic and natural polymers with water-retaining properties for structuring soils in arid climatic zones.
Relevance: The authors of the Project propose to develop methods for obtaining polymer composites based on natural gels and fillers, which will allow accumulating and retaining moisture for a long time, gradually giving it to plants. Polyethyleneimine, agar-agar, chitosan and others will be used as synthetic and natural polymers, and bentonite clay as a natural silicate filler. Improving the water and physical properties of the soil will increase the germination of seeds, increase the intensity of plant development, their resistance to moisture deficiency and drought, lead to an increase in yield and prevent the fertile part of the soil from being washed away and moisture seeping into deeper layers of the soil. Thus, superabsorbents will reduce the costs associated with caring for plants, increase the survival of growing crops, and also provide plants with various types of additives that stimulate their best growth and development..
Scientific adviser: Doctor of Chemical Sciences, Professor, Tynyshtyk K Iskakova
Results obtained: In this research work, biocompatible synthetic and natural polymers, as well as natural fillers, were selected to develop polymer composites with desired properties. New superabsorbent polymers and composites with high sorption capacity were synthesized based on acrylic derivatives and biologically active compounds. Optimal polymerization conditions were determined, and molecular characteristics of single- and double-network structures, as well as the effect of imidazole modification, were studied. Composites modified with layered silicates were obtained, and their activation was shown to enhance sorption capacity. The swelling kinetics of hydrogels was investigated, revealing the influence of filler content on their properties. The developed hydrogels demonstrated high water retention capacity and a positive effect on soil structure and plant growth. The results indicate strong potential for using these materials as moisture-retaining agents in agriculture, especially in arid regions.
List of publications with links to them
- Патент на полезную модель № 6319. Композиционный гель с ионообменными свойствами / Жунусбекова Н.М., Искакова Т.К., Чинибаева Н.С., Кусаинова Г.К., Худайбергенов Н.С. – Опубл. 13.08.2021. – Бюл. № 32.
- Искакова Т.К., Чинибаева Н.С., Кусаинова Г.К., Худайбергенов Н.С. Получение сорбционного материала для извлечения ионов металлов из водных растворов // Материалы научной конференции «Тонкий органический синтез-2021». – Алматы, 3 сентября 2021 г. – С. 30–31.
- Zhunusbekova N., Iskakova T., Chinibayeva N., Kussainova G. Promising biopolymer-metal complexes in biomimetic applications // Proceedings of the 6th International Conference on Advances in Functional Materials. – Jeju, South Korea, 15–17 Feb. 2021. – P. 536.
- Zhunusbekova N., Iskakova T., Chinibayeva N., Kussainova G., Kudaibergenov N. Creation and properties of polymer-silicate composite materials // Proceedings of the 6th International Conference on Advances in Functional Materials. – Jeju, South Korea, 15–17 Feb. 2021. – P. 540.
- Худайбергенов Н.С., Сартбаева К.М., Искакова Т.К.; науч. рук. Жунусбекова Н.М. Синтез и исследование физико-химических свойств полимер-силикатных композитов // Химия и химическая технология в XXI веке: материалы XXII Международной научно-практической конференции студентов и молодых ученых имени Л.П. Кулёва и Н.М. Кижнера. – Томск, 2021. – Т. 2. – С. 277–278.
- Кусаинова Г.К., Искакова Т.К., Чинибаева Н.С., Худайбергенов Н.С. Получение и модификация взаимопроникающих сеток на основе природных полимеров и производных акриловой кислоты // Известия вузов. Серия: Химия и химическая технология. – 2021.
- Жунусбекова Н.М., Искакова Т.К., Чинибаева Н.С., Кусаинова Г.К., Худайбергенов Н.С. Исследование особенностей взаимодействия полимер-металлических комплексов трехмерной структуры в зависимости от различных факторов внешней среды для выявления активных центров // Вестник КазНИТУ. – 2021.