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Direct Electrospinning of Cellulose– C hitosan Composite Nanofiber
Author(s) -
Devarayan Kesavan,
Hanaoka Hirokatsu,
Hachisu Masakazu,
Araki Jun,
Ohguchi Masakatsu,
Behera Bijoya Kumar,
Ohkawa Kousaku
Publication year - 2013
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201200337
Subject(s) - electrospinning , nanofiber , cellulose , materials science , composite number , trifluoroacetic acid , solvent , aqueous solution , acetic acid , chemical engineering , chitosan , fiber , composite material , nuclear chemistry , polymer chemistry , organic chemistry , chemistry , polymer , engineering
The direct electrospinning of a non‐derivatized cellulose (Cs)–chitosan (Ch) composite nanofiber is described for the first time. Either of two cellulose preparations from different sources, i.e., cotton (Cs C ) or bamboo (Cs B ), is fabricated into composite electrospun non‐woven fabrics (ESNWs) with Ch using the trifluoroacetic acid–acetic acid mixed solvent. The total concentration of Cs + Ch in the mixed solvent is fixed at 4.0 wt.‐% with various Cs/Ch weight ratios of 8:2, 5:5 (Figure shows Cs B /Ch‐ESNW), and 2:8, which are fabricated into fine fibers in the Cs/Ch‐ESNWs having average diameters mostly <100 nm. The treatment of the composite fibers with an alkaline–alcohol solution produces the water‐resistant ESNWs, which can retain their fine fibrous network in aqueous environments.