Nanoporous polymeric material and preparation method
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United States of America Patent
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Apr 12, 2011
Grant Date -
Aug 7, 2008
app pub date -
Dec 12, 2007
filing date -
Dec 28, 2006
priority date (Note) -
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Abstract
A nanoporous material is provided. The pores of the nanoporous material are formed between nanoparticles that have a polymeric surface layer. The nanoporous material is produced by (a) suspending the nanoparticles in a medium material, wherein the nanoparticles are phase separated from the medium material, (b) heating the suspension to a temperature above the melting point of the nanoparticle surface layer, and (c) cooling the suspension. Alternatively, the nanoporous material may be produced by dissolving nanoparticles having a polymeric surface layer in a solvent, and then adding a medium material that causes the nanoparticles to phase separate from the solution.
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