POLYETHER ETHER ANILINE-ETHER ETHER SULFONE COPOLYMER, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF, AND POLYETHER ETHER KETONE-ETHER ETHER SULFONE COPOLYMER AND PREPARATION METHOD THEREFOR

WIPO Patent Application WO/2021/109396

A1

A polyether ether aniline-ether ether sulfone copolymer, a preparation method therefor and an application thereof, and a polyether ether ketone-ether ether sulfone copolymer and a preparation method therefor. The polyether ether aniline-ether ether sulfone copolymer comprises a structural unit represented by formula (I); in formula (I), x+y=1, and both x and y are greater than 0; R is -H, an alkane group or an aromatic group; and Ar is an aromatic group. The polyether ether aniline-ether ether sulfone copolymer has good solution processability, and may be transformed into a polyether ether ketone-ether ether sulfone copolymer that has good resistance to organic solvent erosion under acidic conditions. Thus, the problem in which existing materials cannot take into account both solution processability and resistance to organic solvent erosion is solved, and the copolymers have broad application prospects in the field of the preparation of separation membranes, separation appliances, containers and so on that are highly resistant to organic solvents. (I)

ZHANG QIFENG (CN)
ZHANG SUOBO (CN)
SUN YUXUAN (CN)

PCT/CN2020/084103

June 10, 2021

April 10, 2020

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CHANGCHUN INST OF APPLIED CHEMISTRY CHINESE (CN)

C08G75/23; C08G65/40; C08G65/48

CN110052178A	2019-07-26
CN107778486A	2018-03-09
CN105348511A	2016-02-24
CN103642029A	2014-03-19
EP0428484A2	1991-05-22

UNITALEN ATTORNEYS AT LAW (CN)

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