Functionalization of nanofibrous microfiltration membranes for water purification

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United States of America Patent

PATENT NO 9968892
SERIAL NO

14362028

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Abstract

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A high flux and low pressure drop microfiltration (MF) membrane and a method for making the MF membrane. The microfiltration membranes are formed by a method that includes: preparing a nanofibrous structure; and modifying the surface of the nanofibrous structure with a surface modifier. The nanofibrous structure includes an electrospun nanofibrous scaffold or a polysaccharide nanofiber infused nanoscaffold or mixtures thereof. The electrospun nanofibrous scaffold can include polyacrylonitrile (PAN) or polyethersulfone (PES))/polyethylene terephthalate (PET) or mixtures thereof. The surface modifier includes polyethylenimine (PEI) and polyvinyl amine (Lupamin) cross-linked by ethylene glycol diglycidyl ether (EGdGE)/glycidyltrimethylammonium chloride (GTMACl) or poly(1-(1-vinylimidazolium)ethyl-3-vinylimdazolium dibromide (VEVIMIBr).

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Patent Owner(s)

Patent OwnerAddress
THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK35 STATE STREET ALBANY NY 12207

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chu, Benjamin Setauket, US 59 1865
Hsiao, Benjamin S Setauket, US 43 2492
Ma, HongYang East Setauket, US 15 185

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