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Composite Membranes Prepared by Polyvinyl Alcohol-Maleic Acid onto Polysulfone: Separation Performance of Tea Polyphenol

Composite Membranes Prepared by Polyvinyl Alcohol-Maleic Acid onto Polysulfone: Separation... Poly(vinyl alcohol) (PVA)-coated membranes on polysulfone (PS) were cross-linked using maleic acid. The membrane properties (viz. hydrophilicity) were tailored for the ester linkage due to PVA and maleic acid cross-linking. The separation of tea polyphenol by PS-PVA composite membrane was investigated in this study. Cross-linked PVA coated on two different molecular weight cut-off (MWCO) PS membrane systems was prepared for this purpose. The permeation flux and separation for tea polyphenol are the criteria for evaluation. The separation of tea-polyphenol follows the trend PS-PVA-IV > PS-PVA-III > PS-PVA-II > PS-PVA-I. Higher dilution deteriorated the tea-polyphenol separation performance of the membranes. The membranes showed their best performance at pH 6.5. The time dependence separation performance study revealed the order PS-PVA-IV > PS-PVA-III > PS-PVA-II > PS-PVA-I membranes.[graphic not available: see fulltext] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Macromolecular Research Springer Journals

Composite Membranes Prepared by Polyvinyl Alcohol-Maleic Acid onto Polysulfone: Separation Performance of Tea Polyphenol

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References (32)

Publisher
Springer Journals
Copyright
Copyright © The Polymer Society of Korea and Springer 2022
ISSN
1598-5032
eISSN
2092-7673
DOI
10.1007/s13233-022-0064-2
Publisher site
See Article on Publisher Site

Abstract

Poly(vinyl alcohol) (PVA)-coated membranes on polysulfone (PS) were cross-linked using maleic acid. The membrane properties (viz. hydrophilicity) were tailored for the ester linkage due to PVA and maleic acid cross-linking. The separation of tea polyphenol by PS-PVA composite membrane was investigated in this study. Cross-linked PVA coated on two different molecular weight cut-off (MWCO) PS membrane systems was prepared for this purpose. The permeation flux and separation for tea polyphenol are the criteria for evaluation. The separation of tea-polyphenol follows the trend PS-PVA-IV > PS-PVA-III > PS-PVA-II > PS-PVA-I. Higher dilution deteriorated the tea-polyphenol separation performance of the membranes. The membranes showed their best performance at pH 6.5. The time dependence separation performance study revealed the order PS-PVA-IV > PS-PVA-III > PS-PVA-II > PS-PVA-I membranes.[graphic not available: see fulltext]

Journal

Macromolecular ResearchSpringer Journals

Published: Aug 1, 2022

Keywords: membrane; tea-polyphenol; separation; polysulfone-polyvinyl alcohol; composite

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