公开(公告)号：US20230312849A1

公开(公告)日：2023-10-05

申请号：US18191102

申请日：2023-03-28

Applicant: Kraton Corporation

Inventor： Vijay MHETAR ,  Ruidong Ding ,  Jason Tian ,  Roger Tocchetto ,  Jiaqi Yan ,  Robert Bening ,  Sandesh Deshmukh

IPC: C08J5/22 ,  C08F297/04 ,  B01J41/04 ,  B01J41/14 ,  B01J47/12 ,  B01D69/02 ,  B01D71/28 ,  B01D71/30 ,  B01D71/80

CPC classification number: C08J5/2287 ,  C08F297/04 ,  B01J41/04 ,  B01J41/14 ,  B01J47/12 ,  B01D69/02 ,  B01D71/281 ,  B01D71/30 ,  B01D71/80 ,  C08F2810/50 ,  C08J2353/02 ,  B01D2325/42 ,  C25B13/08

Abstract: The disclosure relates to a hydrogenated styrene-based multiblock copolymer composition, having selectively quaternized midblock, for forming anion-exchange membranes (AEMs). The quaternized hydrogenated styrene-based multiblock copolymer is characterized as having a high glass transition temperature from the hydrophobic end-blocks, low vinyl (rubber) content, and quaternized mid-block. AEMs made from the composition have improved thermal and dimensional stability in electrolyzer operations.