Journal of Siberian Federal University. Chemistry / Effect of Solution Properties of Cellulose Acetate/ Chitosan/Poly (vinyl alcohol) on The Morphology of Electrospun Nanofibers

Full text (.pdf)
Issue
Journal of Siberian Federal University. Chemistry. 2025 18 (3)
Authors
Gebremaryam, Yerdawu Z.; Jimma, Mikael A.; Olekhnovich, Roman O.; Uspenskaya, Mayya V.
Contact information
Gebremaryam, Yerdawu Z. : Chemical Engineering Center, ITMO University Saint Petersburg, Russian Federation; ; Jimma, Mikael A. : Chemical Engineering Center, ITMO University Saint Petersburg, Russian Federation; Olekhnovich, Roman O. : Saint Petersburg State University Saint Petersburg, Russian Federation; Uspenskaya, Mayya V. : Saint Petersburg State University Saint Petersburg, Russian Federation; Peter the Great St. Petersburg Polytechnic University Saint Petersburg, Russian Federation
Keywords
electrospinning; cellulose acetate; chitosan; morphology; nanofiber; fiber diameter
Abstract

Electrospinning is attracting significant research interest due to its versatility, adaptability, ease to use and economic feasibility. To meet strict requirements, efforts are being made to generate multi-characteristic nanofibers by blending various polymers. In the present work, electrospun nanofibers were fabricated from a mixture of CA/CS/PVA using a solution of acetic acid and water. At this time, the characterization of the polymer solutions (rheological properties, conductivity and pH value), as well as the morphology and diameters of the nanofibers was conducted. Thus, the various solutions with different total concentrations (5, 6, 7 and 8 % w/v) and ratios of CA/CS/PVA were utilized to assess their effects on the characteristics of the resulting nanofibers. The results show that, a total concentration of 8 % with polymer ratios of CA/CS/PVA (1.6/1.6/4.8 wt.%) exhibited the best solution, and nanofibers were successfully obtained. The electrospinning was conducted under the following parameters; voltage 30 kV, feed rate 0.5 mL/h, and tip-to-collector distance 115 mm resulting in a mean dimeter of 277 nm

Pages
355–367
EDN
OKCOUK
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/157140