US 11,938,472 B2
Alkaline anion exchange membranes derived from diphenylethylene and co-monomer feedstock
Sangwoo Lee, Cohoes, NY (US); Chulsung Bae, Cohoes, NY (US); Musashi J. Briem, Troy, NY (US); and Sungmin Park, Troy, NY (US)
Assigned to Rensselaer Polytechnic Institute, Troy, NY (US)
Filed by RENSSELAER POLYTECHNIC INSTITUTE, Troy, NY (US)
Filed on Nov. 16, 2021, as Appl. No. 17/527,652.
Application 17/527,652 is a continuation of application No. 17/287,639, granted, now 11,207,672, previously published as PCT/US2019/057356, filed on Oct. 22, 2019.
Claims priority of provisional application 62/916,288, filed on Oct. 17, 2019.
Claims priority of provisional application 62/748,671, filed on Oct. 22, 2018.
Prior Publication US 2022/0072529 A1, Mar. 10, 2022
Int. Cl. B01J 41/07 (2017.01); B01D 61/44 (2006.01); B01D 71/06 (2006.01); B01J 41/14 (2006.01); B01J 47/12 (2017.01); C02F 1/469 (2023.01); C08F 212/32 (2006.01); C08J 5/22 (2006.01)
CPC B01J 41/07 (2017.01) [B01D 61/44 (2013.01); B01D 71/06 (2013.01); B01J 41/14 (2013.01); B01J 47/12 (2013.01); C02F 1/469 (2013.01); C08F 212/32 (2013.01); C08J 5/2287 (2013.01); C08F 2810/00 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of making an ion exchange membrane material, comprising:
providing a reaction medium including a diphenylalkylene and an alkadiene;
copolymerizing a polymer from the diphenylalkylene and alkadiene, the polymer including a backbone having a plurality of pendant phenyl groups;
hydrogenating one or more unsaturated carbons of the polymer backbone;
functionalizing the polymer backbone with one or more haloalkylated precursor substrates; and
substituting a halide from the one or more haloalkylated precursor substrates with an ionic group.