Obtaining and Characterization of Biodegradable Polymer Blends Based on Polyvinyl Alcohol, Starch, and Chitosan
Irmukhametova G. Al Azzam K.M. Mun G.A. Bekbayeva L. Dinara Z. Yermukhambetova B.B. Nechipurenko S.V. Efremov S.A. Negim E.-S. Samy M.
February 2025Multidisciplinary Digital Publishing Institute (MDPI)
Polymers
2025#17Issue 4
Although chitosan (CS) is used in many industries because of its low cost, biodegradability, nontoxic, antibacterial, and antioxidant qualities, it lacks sufficient mechanical and barrier properties. Biodegradable polymers based on CS, polyvinyl alcohol (PVA), and starch (S) were prepared at various ratios (1/3/6 and 1/5/4) via a blending polymerization process in the presence of water as the solvent and glacial acetic acid as the catalyst. The obtained biodegradable polymers were characterized via FTIR, TGA, SEM, and mechanical tests. The biodegradable polymers were mixed with rice straw and carbon black to study the effects of rice straw and carbon black on the physicomechanical properties of the biodegradable polymer films, including viscosity, tensile strength, elongation, and contact angle. The incorporation of rice straw and carbon black into a polymer blend significantly enhanced the physical and mechanical properties while also boosting their biodegradability by 36% and 15%, respectively, due to their biological activity. Notably, the CS/PVA/S blend with a ratio of 1/5/4, combined with rice straw, emerged as the standout performer. It exhibited superior mechanical strength and the shortest degradation time, outperforming the CS/PVA/S blended with a ratio of 1/3/6 mixed with carbon black. According to these findings, the biodegradable polymers became more soluble as the temperature increased from 30 to 45 °C.
biodegradable , chitosan , mechanical properties , polyvinyl alcohol
Text of the article Перейти на текст статьи
Department of Chemistry & Technology of Organic Materials, Polymers and Natural Compounds, Al-Farabi Kazakh National University, 71 Al-Farabi Av., Almaty, 050040, Kazakhstan
National Engineering Academy of the Republic of Kazakhstan, 80 Bogenbai Batyr Str., Almaty, 050010, Kazakhstan
Department of Chemistry, Faculty of Science, The University of Jordan, Amman, 11942, Jordan
National Nanotechnology Open Laboratory, Al-Farabi Kazakh National University, 71 Al-Farabi Av., Almaty, 050040, Kazakhstan
Department of Biochemistry, School of General Medicine-1, KazNMU Named S.D. Asfendiyarov, 88 Tole bi Str., Almaty, 480012, Kazakhstan
School of Materials Science and Green Technologies, Kazakh British Technical University, 59 Tole bi Str., Almaty, 050000, Kazakhstan
Polymers and Pigments Department, National Research Centre, 33 El Buhouth St., Giza, Dokki, 12622, Egypt
Department of Chemistry & Technology of Organic Materials
National Engineering Academy of the Republic of Kazakhstan
Department of Chemistry
National Nanotechnology Open Laboratory
Department of Biochemistry
School of Materials Science and Green Technologies
Polymers and Pigments Department
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026