US 11,912,825 B2
Polymers derived from 2,2′-bisimidazoles
Jason E. Bara, Tuscaloosa, AL (US); Kathryn E. O'Harra, Tuscaloosa, AL (US); and Irshad Kammakakam, Tuscaloosa, AL (US)
Assigned to The Board of Trustees of The University of Alabama, Tuscaloosa, AL (US)
Filed by The Board of Trustees of The University of Alabama, Tuscaloosa, AL (US)
Filed on Jan. 21, 2021, as Appl. No. 17/154,451.
Claims priority of provisional application 62/994,608, filed on Mar. 25, 2020.
Prior Publication US 2021/0301085 A1, Sep. 30, 2021
Int. Cl. C08G 73/18 (2006.01); C08G 73/06 (2006.01); C07D 235/20 (2006.01); C08L 79/04 (2006.01); C08G 73/10 (2006.01)
CPC C08G 73/0616 (2013.01) [C07D 235/20 (2013.01); C08G 73/1039 (2013.01); C08G 73/18 (2013.01); C08L 79/04 (2013.01); C08G 73/1085 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01)] 13 Claims
 
1. A composition comprising a polymer obtained by polymerizing a mixture comprising a compound having the formula:

OG Complex Work Unit Chemistry
wherein:
R1 is C1-C10 alkyl or C1-C10 perfluoroalkyl;
Y is N or N+—R6, wherein R6 is C1-C10 alkyl, wherein R6 is optionally substituted with C6-C14 aryl or C1-C13 heteroaryl;
R2, R2′, R3, and R3′ are, each independent of the other, selected from hydrogen; or
wherein R2 and R3 together form a 6 membered ring containing 6 carbon atoms; and/or
wherein R2′ and R3′ together form a 6 membered ring containing 6 carbon atoms;
R4 and R5 are each H or a group having the formula:

OG Complex Work Unit Chemistry
wherein when R4 and R5 are each H, the mixture further comprises a compound of formula X—R′—X, wherein X is a leaving group selected from chlorine, bromine, iodine, mesylate, triflate, and tosylate, and R′ is C1-C10alkyl or C1-C10alkoxy;
when R4 and R5 are each a group having the formula:

OG Complex Work Unit Chemistry
the mixture further comprises a compound having the formula:

OG Complex Work Unit Chemistry
when R4 and R5 are each a group having the formula:

OG Complex Work Unit Chemistry
the mixture further comprises a compound having the formula:

OG Complex Work Unit Chemistry