Electrospun porous cellulose acetate fibers from volatile solvent mixture

Date
2011
Advisor
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Source Title
Materials Letters
Print ISSN
0167-577X
Electronic ISSN
Publisher
Elsevier
Volume
65
Issue
14
Pages
2291 - 2294
Language
English
Type
Article
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Abstract

Electrospun porous cellulose acetate (CA) fibers were produced from highly volatile binary solvent system; dichloromethane(DCM)/acetone. The morphology and porous structure of CA fibers were highly dependent on DCM/acetone ratio and the concentration of the solutions. Ribbon-like porous CA fibers were obtained from 5% (w/v) to 10% (w/v) polymer solutions depending on the DCM/acetone ratio; 1/1, 2/1, 3/1 and 9/1 (v/v). Using higher DCM/acetone ratio resulted in bead-free fibers from less concentrated polymer solutions due to the high viscosity of the solutions, in addition, more porous CA fibers were obtained owing to the high volatility of DCM.

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Keywords
Cellulose acetate, Electrospinning, Nanofiber, Porous, Ribbon-like
Citation
Published Version (Please cite this version)