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Sorption properties of the composite fibers made of PAN and chitosan
Author(s) -
Min Byung Ghyl,
Kim Chang Whan
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.10660
Subject(s) - polyacrylonitrile , chitosan , sorption , composite number , adsorption , acetic acid , chemical engineering , fiber , materials science , polymer chemistry , spinning , composite material , chemistry , organic chemistry , polymer , engineering
Abstract A composite fiber of polyacrylonitrile (PAN) and chitosan was obtained by spinning the mixture of PAN/chitosan with a certain amount of diluted acetic acid as a plasticizer. Water plasticizes the PAN and acetic acid plasticizes the chitosan. The fiber showed a porous and fibrillar structure, which could be converted easily into pulplike short fiber by pulping. PAN/chitosan pulp showed a much higher amount of uptake for acid dye than that of either powdery chitosan or activated carbon. It is considered that this better sorption capacity of the composite fiber results from the relatively large surface area attributed to its pulplike shape. The adsorption behavior of the composite fiber was considerably affected by temperature and pH because the adsorption is exothermic and proceeds by an acid–base reaction. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 84: 2505–2511, 2002