Plasma polymerized acetonitrile protective coatings and method of preparation therefor for ultrafiltration/microfiltration membranes

Abstract

The present invention relates to a process for coating an ultrafiltration/microfiltration membrane with a thin protective thin film comprising: (a) loading the ultrafiltration/microfiltration membrane in an enclosed reactor; (b) evacuating the reactor; (c) charging the reactor with an inert carrier gas and a gaseous nitrogen-containing organic monomer; and (d) plasma-polymerizing the organic monomer such that a thin-film protective coating of the polymerized monomer is deposited on the entire effective surface of the membrane. The present invention further relates to a nonfouling membrane comprising an ultrafiltration/microfiltration membrane substrate on which is deposited an anti-fouling polymerized nitrogen-containing organic monomer thin film protective coating.

Dependencies are inferred from the claim text.