Synthesis of nanocomposite cryogels based on polyvinyl alcohol and carbon nanotubes

Synthesis of nanocomposite cryogels based on polyvinyl alcohol and carbon nanotubes Научная публикация

Журнал

Chemistry for Sustainable Development
ISSN: 1817-1818

Вых. Данные

Год: 2025, Том: 33, Номер: 3, Страницы: 366-371 Страниц : 6 DOI: 10.15372/CSD2025665

Авторы

Pykin A.L. ¹ , Borisova N.N. ² , Zherebtsov S.I. ¹

Организации

1	Federal Research Center for Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, Kemerovo, Russia
2	Research Institute of Complex Problems of Cardiovascular Diseases, Kemerovo, Russia

The high-strength nanocomposite cryogels based on polyvinyl alcohol (PVA) and carbon nanotubes (CNTs) have been synthesised and studied. To overcome the problems related to CNTs agglomeration in polar solvents, which limits their uniform distribution over the polymer matrix, cryogel composition was optimised to achieve high strength characteristics. To obtain uniform CNT dispersions, homogenisation in solvents (water, dimethyl sulphoxide (DMSO) and a mixture of DMSO/water = 80 : 20 by volume) in combination with ultrasonic treatment was used. During the experiment, cryogel samples were stretched uniaxially, which allowed us to obtain the ultimate strength values for each sample. Data processing was performed using STATISTICA 10 software. Using regression modelling, the Dependences between the ultimate strength of nanocomposites and synthesis parameters (the concentration of initial PVA solution, its molecular weight, water content in the solvent, and the concentration of CNTs) were established using regression modelling. The obtained regression equation was adequate with respect to Fisher’s criterion, and determination coefficient was R2 = 0.81, which confirms the accuracy of the model and its applicability for predicting the strength characteristics of cryogels. In addition to regression analysis, the dependences of the Harrington desirability function on synthesis parameters were analysed. This approach allowed us to identify optimal components ratio for obtaining PVA/CNT nanocomposite cryogels, which significantly increased the efficiency of developing materials with high strength properties. The results of the study emphasise the importance of taking into account various factors when optimising synthesis conditions and also offer new prospects for further research in the area of polymer composites.

Pykin A.L. , Borisova N.N. , Zherebtsov S.I.
Synthesis of nanocomposite cryogels based on polyvinyl alcohol and carbon nanotubes
Chemistry for Sustainable Development. 2025. V.33. N3. P.366-371. DOI: 10.15372/CSD2025665 РИНЦ

Пыкин А.Л. , Борисова Н.Н. , Жеребцов С.И.
Синтез нанокомпозитных криогелей на основе поливинилового спирта и углеродных нанотрубок
Химия в интересах устойчивого развития. 2025. Т.33. №3. С.405-411. DOI: 10.15372/KhUR2025665 РИНЦ OpenAlex

Поступила в редакцию:	27 мар. 2025 г.
Принята к публикации:	13 мая 2025 г.
Опубликована online:	5 авг. 2025 г.

РИНЦ:

82703735