Characterization of new membrane materials by means of fouling experiments: Adsorption of BSA on polytherimide-polyvinyl pyrrolidone membranes

H.D.W. Roesink, M.A.M. Beerlage, W. Potman, Th. van den Boomgaard, M.H.V. Mulder, C.A. Smolders

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

The hydrophilicity of polyetherimide-polyvinylpyrrolidone (PEI-PVP) microfiltration membranes can be adjusted by means of a suitable post-treatment. The influence of the nature of the membrane surface on fouling properties was studied using permeation experiments before and after exposure to a protein (BSA) solution and adsorption experiments with 14C labelled BSA. A correlation between the permeation experiments and the radiolabelled BSA adsorption experiments was found. The PVP in the membrane matrix prevents BSA adsorption taking place to a large extent and it appeared that heat-treated PEI-PVP membranes showed the same nonfouling behaviour as, for example, cellulose acetate membranes.
Original languageEnglish
Pages (from-to)231-243
Number of pages13
JournalColloids and surfaces
Volume55
DOIs
Publication statusPublished - 1991

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