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Effects of Neutralization Process on Preparation and Characterization of Chitosan Membranes for Wound Dressing
Author(s) -
Nogueira Campos Maria Gabriela,
Ferreira Grosso Carlos Raimundo,
Cárdenas Galo,
Inocentinni Mei Lucia Helena
Publication year - 2005
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200551131
Subject(s) - chitosan , membrane , solubility , swelling , materials science , ultimate tensile strength , scanning electron microscope , chemical engineering , differential scanning calorimetry , glass transition , polymer chemistry , composite material , chemistry , polymer , organic chemistry , biochemistry , physics , engineering , thermodynamics
Abstract Summary: Neutralization process effects on preparation and characterization of chitosan membranes were evaluated by differencial scanning calorimetry and scanning electron microscopy. Water solubility and humidity of chitosan membranes were also studied. Swelling behavior in different pH media was evaluated and mechanical properties such as tensile strength and elongation at break were measured. Neutralization process increased glass transition temperature of chitosan membranes and decreased their water solubility, humidity and water sorption. An improvement in mechanical properties of chitosan membranes was also observed after neutralization process.