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Preparation and characterization of alginate/Hydroxypropyl chitosan blend fibers
Author(s) -
Fan Lihong,
Li Mingjia,
Gong Yugui,
Peng Kai,
Xie Weiguo
Publication year - 2011
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.35629
Subject(s) - miscibility , chitosan , materials science , aqueous solution , ultimate tensile strength , scanning electron microscope , fourier transform infrared spectroscopy , propylene oxide , chemical engineering , nanofiber , spinning , polymer chemistry , raman spectroscopy , nuclear chemistry , composite material , chemistry , polymer , organic chemistry , copolymer , physics , ethylene oxide , optics , engineering
Abstract Hydroxypropyl chitosan (HPCS) was synthesized from chitosan and propylene oxide under alkali conditions. It was characterized by IR spectroscopy and X‐ray diffraction (XRD). We prepared alginate/HPCS blend fibers by spinning their solution through a viscose‐type spinneret into a coagulating bath containing aqueous CaCl 2 and ethanol. The structure and properties of the blend fibers were studied with the aid of IR spectroscopy, scanning electron microscopy, and XRD. The results indicate a good miscibility between alginate and HPCS because of the strong interaction of the intermolecular hydrogen bonds. The mechanical properties and water‐retention properties were also measured. The best values of the tensile strength and breaking elongation of the blend fibers were obtained when the HPCS content was 30 wt %. The water‐retention values of the blend fibers increased as the amount of HPCS increased. Antibacterial fibers, obtained by the treatment of the fibers with an aqueous solution of silver nitrate, exhibited good antibacterial activity to Staphylococcus aureus . © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012