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US 12,024,576 B2Granted
Quaternized polyaromatics for use in electrochemical devices
AssigneeOrion Polymer Corp.
InventorsChulsung Bae, Gregory Kline, Bharat Shrimant, Ding Tian, Xiaofeng Wang, Yu Seung Kim, Eun Joo Park, Santosh Adhikari
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Abstract
Disclosed herein in various embodiments are aryl-ether free polyaromatic polymers based on random copolymer architecture with two, three, or more aromatic ring components and methods of preparing those polymers. The polymers of the present disclosure can be used as ion exchange membranes, e.g., as anion exchange membranes, and ionomer binders in alkaline electrochemical devices.
Claims18
A copolymer according to Formula I
- wherein Ar1, Ara are different aryl groups to form random copolymers, and are selected from the group consisting of:
- and combinations thereof, wherein R′ includes an alkyl group, a halide, or combinations thereof,
- wherein n is 2 to 20,
- wherein each of a1, . . . and an is, independently, 10 to 1,000,000,
- wherein each of R1, . . . and Ra is independently:
- wherein x is from 0 to 20, and
- wherein FG is selected from the group consisting of NR3+X−, NR3+OH−, OH, NR2, SO3H, P(═O)(OH)2, CO2H, SO3−M+, P(═O)(O−)2 2M+, CO2−M+(M═Li, Na, K), linear multi-quaternary ammonium groups, branched multi-quaternary ammonium groups, crosslinked multi-quaternary ammonium groups, and combinations thereof, and R is an alkyl group, and Xis a halide.
4 more elements
Dependencies are inferred from the claim text.