Biofunctional Membrane Substrates Based on Blends of Polyetherimide with Poly (Vinyl Pyrrolidone-Co-Vinyl Acetate)
Amorphous engineering thermoplastics such as polysulfone, polyethersulfone, and polyetherimide have been used for the fabrication of a wide range of membrane materials via phase inversion methods. The high glass transition temperatures inherent to these materials lead to glassy membranes which display excellent mechanical integrity for a variety of applications. The application of engineering thermoplastics as microporous substrates for biofunctional membranes is typically precluded, however, owing to a lack of suitable functional attachment sites on the membrane surface. Further, the hydrophobic nature of these materials leads to difficulties with protein adsorption (i.e. fouling) and wettability.
KeywordsCasting Solution Phase Inversion Quaternary System Hydrolysis Time Casting System
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