Durable, Plasticization-Resistant Membranes using Metal-Organic Frameworks

Tech ID: 25072 / UC Case 2015-174-0

Patent Status

Country Type Number Dated Case
Patent Cooperation Treaty Reference for National Filings WO2017087422 05/26/2017 2015-174

Patent Pending

Brief Description

Over the last several decades, polymer membranes have shown promise for purifying various industrial gas mixtures. However, there are a number of potential applications in which highly polarizable gases (e.g., CO2, C3H6, C3H8, butenes, etc.) diminish membrane selectivities through the mechanism of plasticization. Plasticization is the swelling of polymer films in the presence of certain penetrants that results in increased permeation rates of all gases, but an unwanted, and often times, unpredictable loss in membrane efficiency. Current strategies for reducing plasticization effects often result in a reduction in membrane permeability. To address the need for plasticization-resistant membranes that retain good separation performance, researchers at UC Berkeley have developed a novel method for improving polymer membrane stability and performance upon the incorporation of metal-organic frameworks (MOFs). This method can be applied to a broad range of commercially available polymers as well as enable new polymers to be commercialized.

Suggested uses

  • Industrial gas separations


  • Broad range of gas separation applications
  • Add-on technology to current membranes
  • Reduces plasticization effects in polymers
  • Does not sacrifice membrane performance
  • Can implemented with current membrane formation techniques

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  • Long, Jeffrey R.

Other Information


metal-organic framework, MOF, polymer membrane, polymer, membrane, carbon dioxide, propene, propylene, propane, butene, separation, gas separation, butylene, ethylene, ethane, methane, butenes, alkenes

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