Loading patent…
AssigneeThe Research Foundation for The State University of New York
InventorsLingxiang Zhu, Liang Huang, Mark Swihart, Haiqing Lin
Estimating the term…
Provided are composite articles having a membrane and a porous substrate, where the porous substrate has the membrane disposed thereon. The membrane has two layers, where the first layer has the second layer disposed thereon, and each layer has a plurality of polymer chains with a plurality of silicon-oxygen groups and a plurality of silicon-carbon groups. The first layer has a silicon to oxygen ratio of about 4:1 to about 1:1.25 and a silicon to carbon ratio of about 1:2 to about 1:10, and the second layer has a silicon to oxygen ratio of about 1:1 to about 1:2 and a silicon to carbon ratio of about 2:1 to about 10:1. At least a portion of the polymer chains of the second layer am crosslinked. The composite articles may be used in gas separation methods. Also provided are methods of making the composite articles and devices utilizing the composite articles.
A composite article comprising a porous substrate and a membrane, wherein the membrane comprises a first layer and a second layer, wherein at least a portion of the porous substrate has the first layer disposed thereon and at least a portion of the first layer has the second layer disposed thereon and the first layer comprises a plurality of polymer chains comprising a plurality of silicon-oxygen groups and a plurality of silicon-carbon groups and the first layer has
Dependencies are inferred from the claim text.