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Title: Polymeric molecular sieve membranes for gas separation

Abstract

A porous polymer membrane useful in gas separation, the porous polymer membrane comprising a polymeric structure having crosslinked aromatic groups and a hierarchical porosity in which micropores having a pore size less than 2 nm are present at least in an outer layer of the porous polymer membrane, and macropores having a pore size of over 50 nm are present at least in an inner layer of the porous polymer membrane. Also described are methods for producing the porous polymer membrane in which a non-porous polymer membrane containing aromatic rings is subjected to a Friedel-Crafts crosslinking reaction in which a crosslinking molecule crosslinks the aromatic rings in the presence of a Friedel-Crafts catalyst and organic solvent under sufficiently elevated temperature, as well as methods for using the porous polymer membranes for gas or liquid separation, filtration, or purification.

Inventors:
; ;
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1375236
Patent Number(s):
9731249
Application Number:
14/667,968
Assignee:
UT-BATTELLE, LLC
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Mar 25
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats

Dai, Sheng, Qiao, Zhenan, and Chai, Songhai. Polymeric molecular sieve membranes for gas separation. United States: N. p., 2017. Web.
Dai, Sheng, Qiao, Zhenan, & Chai, Songhai. Polymeric molecular sieve membranes for gas separation. United States.
Dai, Sheng, Qiao, Zhenan, and Chai, Songhai. Tue . "Polymeric molecular sieve membranes for gas separation". United States. https://www.osti.gov/servlets/purl/1375236.
@article{osti_1375236,
title = {Polymeric molecular sieve membranes for gas separation},
author = {Dai, Sheng and Qiao, Zhenan and Chai, Songhai},
abstractNote = {A porous polymer membrane useful in gas separation, the porous polymer membrane comprising a polymeric structure having crosslinked aromatic groups and a hierarchical porosity in which micropores having a pore size less than 2 nm are present at least in an outer layer of the porous polymer membrane, and macropores having a pore size of over 50 nm are present at least in an inner layer of the porous polymer membrane. Also described are methods for producing the porous polymer membrane in which a non-porous polymer membrane containing aromatic rings is subjected to a Friedel-Crafts crosslinking reaction in which a crosslinking molecule crosslinks the aromatic rings in the presence of a Friedel-Crafts catalyst and organic solvent under sufficiently elevated temperature, as well as methods for using the porous polymer membranes for gas or liquid separation, filtration, or purification.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {8}
}

Works referenced in this record:

Matrices for separation and separation exploiting said matrices
patent, June 2003


Mesoporous permeation layers for use on active electronic matrix devices
patent, September 2007


Stable composite material comprising supported porous gels
patent, March 2012


Microporous molecular separation membrane with high hydrothermal stability
patent, October 2012


Hybrid multichannel porous structure for hydrogen separation
patent, July 2013


Oxygen-permeable membrane and method for the production thereof
patent, July 2013


Drug eluting medical devices having porous layers
patent, August 2014


Charge barrier flow-through capacitor
patent-application, November 2002


Ion exchanger
patent-application, October 2003


Composite materials comprising supported porous gels
patent-application, October 2004


Ion adsorption module and method for water treatment
patent-application, June 2005


Column for ion chromatograph, suppressor and ion chromatograph
patent-application, November 2006


Hydrogel preparation and process of manufacture thereof
patent-application, March 2007


Process for removing microbubbles from a liquid
patent-application, May 2007


Medical devices having nanoporous coatings for controlled therapeutic agent delivery
patent-application, August 2008


Stable Composite Material Comprising Supported Porous Gels
patent-application, October 2008


Hot Film Lamination (Vacuum Assisted) for Carpet Backing Applications
patent-application, November 2008


Medical Devices Having Porous Component For Controlled Diffusion
patent-application, June 2009


Method and Apparatus for Condensate Demineralization
patent-application, December 2009


Porous Carbon Particle and Producing Method of the Same
patent-application, July 2014


Surface-Functionalized Mesoporous Carbon Materials
patent-application, October 2014


Wound Dressing with an Antimicrobial Effect
patent-application, April 2015


Solution-Processed, Organophilic Membrane Derived from a Polymer of Intrinsic Microporosity
journal, March 2004


An Efficient Polymer Molecular Sieve for Membrane Gas Separations
journal, January 2013


Conjugated Microporous Polymers
journal, March 2009


Porous, Crystalline, Covalent Organic Frameworks
journal, November 2005


Nanoporous organic polymer networks
journal, April 2012


Polymers of Intrinsic Microporosity (PIMs): Bridging the Void between Microporous and Polymeric Materials
journal, April 2005


Preparation of free-standing high quality mesoporous carbon membranes
journal, February 2010


A Superacid-Catalyzed Synthesis of Porous Membranes Based on Triazine Frameworks for CO2 Separation
journal, June 2012