Formation and characterization of chitosan formed-in-place ultrafiltration membranes

Autor: Xingwu Wang, H. Garth Spencer
Rok vydání: 1998
Předmět:
Zdroj: Journal of Applied Polymer Science. 67:513-519
ISSN: 1097-4628
0021-8995
DOI: 10.1002/(sici)1097-4628(19980118)67:3<513::aid-app14>3.0.co;2-w
Popis: Formed-in-place (FIP) ultrafiltration (UF) membranes were formed from dilute solutions of chitosans with different molecular weights in 1% acetic acid on a macroporous titanium dioxide substrate. The ultrafiltration properties were characterized by investigating the rejection and permeability of a 1.0 g/L bovine serum albumin (BSA) solution at various pH and ionic strength conditions. The membrane stability to the crossflow shear and to the ionic strength was investigated. There was very little dependence of the membrane-formation capability and the membrane properties on the chitosan molecular weight. In contrast, pH had a marked effect on membrane surface properties, membrane stability, and membrane morphology. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 67: 513–519, 1998
Databáze: OpenAIRE