Volume 137, Issue 12 48483
Article

Saccharomyces cerevisae microfiltration performance of polycarbonate membranes containing chitosan-based polyelectrolyte complexes

Rayane S. Vale

Rayane S. Vale

Polymer Laboratory, Department of Chemistry, Federal University of São Carlos, Via Washington Luís km 235, São Carlos, São Paulo, 13565-905 Brazil

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Caio M. Paranhos

Corresponding Author

Caio M. Paranhos

Polymer Laboratory, Department of Chemistry, Federal University of São Carlos, Via Washington Luís km 235, São Carlos, São Paulo, 13565-905 Brazil

Correspondence to: C. M. Paranhos (E-mail: [email protected])Search for more papers by this author
First published: 30 September 2019
Citations: 7

ABSTRACT

Polyelectrolyte complexes (PECs) were prepared using chitosan and sulfonated poly(ethylene terephthalate) by the mixture method. Fourier transform infrared spectroscopy, zeta potential, X-ray diffraction, and thermogravimetric analysis were used to characterize the chemical structure, surface charge, crystallinity, and thermal stability of the PECs. To evaluate how PECs affect the water vapor flux and the microfiltration performance, PECs solutions were spread via casting on polycarbonate microporous membranes. The increase in water vapor flux and in the Saccharomyces cerevisae microfiltration performance indicated that the presence of the PECs acts as fixed charges, changing significantly the transport properties of the polycarbonate matrix. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48483.

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