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Open AccessArticle

Membrane Functionalization with Hyperbranched Polymers

Leibniz Institute of Surface Functionalization, Permoserstr. 15, Leipzig D-04318, Germany
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Academic Editor: Naozumi Teramoto
Materials 2016, 9(8), 706; https://doi.org/10.3390/ma9080706
Received: 14 July 2016 / Revised: 10 August 2016 / Accepted: 15 August 2016 / Published: 20 August 2016
(This article belongs to the Section Porous Materials)
Polymer membranes have been modified with hyperbranched polymers with the aim to generate a high density of hydrophilic functional groups at the membrane surface. For this purpose hyperbranched polymers containing amino, alcohol, and carboxylic acid end groups were used for membrane modification, respectively. Thus, surface potential and charges were changed significantly to result in attractive or repulsive interactions towards three different proteins (albumin, lysozyme, myoglobin) that were used to indicate membrane fouling properties. Our studies demonstrated that hydrophilization alone is not effective for avoiding membrane fouling when charged proteins are present. In contrast, electrostatic repulsion seems to be a general key factor. View Full-Text
Keywords: polymer membranes; hyperbranched polymers; surface functionalization; zeta potential; protein adsorption polymer membranes; hyperbranched polymers; surface functionalization; zeta potential; protein adsorption
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Schulze, A.; Went, M.; Prager, A. Membrane Functionalization with Hyperbranched Polymers. Materials 2016, 9, 706.

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