Ut-battelle, Inc.

University of Tennessee Research Foundation

Zhenzhen Yang

Sheng Dai

Ilja Popovs

A crosslinked microporous membrane (crosslinked polymer) composition useful in gas separation, the membrane comprising: (i) an aromatic polymer containing a multiplicity of benzene rings; and (ii) a multiplicity of fluorinated aromatic moieties, each fluorinated aromatic moiety containing at least two separate methylene (—CH—) linkages connected to benzene rings on the aromatic polymer; wherein the cross-linked microporous membrane possesses micropores having a pore size of up to 2 nm. Also described are methods for producing the crosslinked polymer and a microporous carbon material produced by pyrolysis of the crosslinked polymer membrane. Also described are methods for using the crosslinked polymer and microporous carbon material for gas or liquid separation, filtration, or purification.

Fluorinated nanoporous molecular sieve membranes for efficient gas separation

A polymer composition comprising a covalent triazine framework having the following structure: wherein: each asterisk (*) in A units denotes a point of covalent bonding with an asterisk in B units, and each asterisk (*) in B units denotes a point of covalent bonding with an asterisk in A units; r is an integer of 1-3; R is a fluorinated hydrocarbon containing at least two aromatic rings and at least one ether linkage between aromatic rings; the composition includes a multiplicity of A units and multiplicity of B units; and a portion of the connection points are terminated by endcapping nitrile groups. Also described are methods for producing the polymer and a microporous carbon material produced by pyrolysis of the porous polymer membrane. Also described are methods for using the polymer and microporous carbon material for gas or liquid separation, filtration, or purification.

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Knoxville, TN, United States of America

Zhenzhen Yang