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US 2003/0165625 A1Published application
Method of making a nanoporous film
OwnerYing Hung So, Q. Jason Niu +6inventors
InventorsYing Hung So, Q. Jason Niu, Paul H. Townsend III, Steve J. Martin, Thomas H. Kalantar, James Peter Godschalx, Kennethus J. Bruza, Kevin J. Bouck
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Abstract
Applicants found that selection of reactive nanoparticles as poragens when combined with monomeric precusors to organic, particularly polyarylene or polyarylene ether, matrix materials are effective in obtaining very small pore sizes.
Claims13
A method comprising
- providing monomeric precursors to an organic polymeric matrix material,
- partially polymerizing the precursors in the presence of nanoparticles, which have a weight average diameter of less than 30 nm and which have a thermal decomposition temperature, to form a curable oligomeric mixture wherein the nanoparticles are grafted with the oligomers,
- coating the oligomeric mixture onto a substrate, and
- heating the mixture thereby to crosslinking the oligomers and decomposing the nanoparticles to form pores having an average diameter of less than 30 nm.
1 more element
Dependencies are inferred from the claim text.