US 12,281,132 B2
Phosphonium-based zwitterionic monomers and polymers, and compositions and methods thereof
Marcel U. Brown, Amherst, MA (US); and Todd Emrick, South Deerfield, MA (US)
Assigned to University of Massachusetts, Westborough, MA (US)
Filed by University of Massachusetts, Boston, MA (US)
Filed on Jan. 24, 2023, as Appl. No. 18/100,592.
Application 18/100,592 is a division of application No. 17/015,988, filed on Sep. 9, 2020, granted, now 11,603,379.
Claims priority of provisional application 62/897,479, filed on Sep. 9, 2019.
Prior Publication US 2023/0192732 A1, Jun. 22, 2023
Int. Cl. C07F 9/54 (2006.01); C08L 25/18 (2006.01)
CPC C07F 9/5407 (2013.01) [C07F 9/5442 (2013.01); C08L 25/18 (2013.01)] 11 Claims
 
1. A compound having the structural formula:

OG Complex Work Unit Chemistry
wherein
X is O or NH,
R1 is H or a methyl,
each R2 is independently an alkyl or aryl group,
L1 is (CH2)i, wherein i is an integer selected from 1 and 2, and
L2 is (CH2)j, wherein j is an integer selected from 0 to 6.