A phenyl azide-based copolymer synthesized according to a method comprising reacting a compound of Formula (IV) or salt or solvate thereof with a compound of Formula (V): wherein each R 1a and R 1b is independently selected from hydrogen and halogen; each R 2a and R 2b is independently selected from halogen, -CN, and optionally substituted C 1 -C 6 fluoroalkyl; A 1 is -S(=O) 2 -; A 2 is -C(=O)-; A 3 is -C(=O)-; each B 1 , B 2 , and B 3 is independently selected from -O- and -NR 3c -; D is -S(=O) 2 O - , -S(=O) 2 OR 9a , -C(=O)O - , or -C(=O)OR 9a ; Z 1 is -(CR 6c R 6d ) s -; Z 2 is -(CR 6c R 6d ) t -; Z 3 is -(CR 6c R 6d ) p -; each R 4c , R 4d , R 5d , R 5e , R 6c , and R 6d is independently selected from hydrogen, halogen, -CN, -OR 9a , optionally substituted C 1 -C 4 alkyl, optionally substituted C 1 -C 4 fluoroalkyl, optionally substituted C 2 -C 6 alkenyl, -NR 3c R 3d , -S(=O) 2 O - , - S(=O) 2 OR 9a , -C(=O)O - , and -C(=O)OR 9a ; each R 3a and R 3b is independently selected from hydrogen, optionally substituted C 1 -C 4 alkyl, and optionally substituted benzyl; each R 3c and R 3d is independently selected from hydrogen, optionally substituted C 1 -C 4 alkyl, -X-optionally substituted C 1 -C 4 alkyl, optionally substituted C 2 -C 6 alkenyl, and optionally substituted aryl; X is -C(=O)-, -S(=O)-, or -S(=O) 2 -; each R 9a , R 11a , R 11b , R 11c , R 12a , R 12b , and R 12c is independently selected from hydrogen, optionally substituted C 1 -C 4 alkyl, and optionally substituted aryl; n is an integer selected from 0, 1, 2, 3, 4, 5, and 6; s is an integer selected from 1, 2, 3, 4, and 5; t is an integer selected from 1, 2, 3, 4, or 5; and p is an integer selected from 1, 2, 3, 4, or 5. each R 1a and R 1b is independently selected from hydrogen and halogen; each R 2a and R 2b is independently selected from halogen, -CN, and optionally substituted C 1 -C 6 fluoroalkyl; A 1 is -S(=O) 2 -; A 2 is -C(=O)-; A 3 is -C(=O)-; each B 1 , B 2 , and B 3 is independently selected from -O- and -NR 3c -; D is -S(=O) 2 O - , -S(=O) 2 OR 9a , -C(=O)O - , or -C(=O)OR 9a ; Z 1 is -(CR 6c R 6d ) s -; Z 2 is -(CR 6c R 6d ) t -; Z 3 is -(CR 6c R 6d ) p -; each R 4c , R 4d , R 5d , R 5e , R 6c , and R 6d is independently selected from hydrogen, halogen, -CN, -OR 9a , optionally substituted C 1 -C 4 alkyl, optionally substituted C 1 -C 4 fluoroalkyl, optionally substituted C 2 -C 6 alkenyl, -NR 3c R 3d , -S(=O) 2 O - , - S(=O) 2 OR 9a , -C(=O)O - , and -C(=O)OR 9a ; each R 3a and R 3b is independently selected from hydrogen, optionally substituted C 1 -C 4 alkyl, and optionally substituted benzyl; each R 3c and R 3d is independently selected from hydrogen, optionally substituted C 1 -C 4 alkyl, -X-optionally substituted C 1 -C 4 alkyl, optionally substituted C 2 -C 6 alkenyl, and optionally substituted aryl; X is -C(=O)-, -S(=O)-, or -S(=O) 2 -; each R 9a , R 11a , R 11b , R 11c , R 12a , R 12b , and R 12c is independently selected from hydrogen, optionally substituted C 1 -C 4 alkyl, and optionally substituted aryl; n is an integer selected from 0, 1, 2, 3, 4, 5, and 6; s is an integer selected from 1, 2, 3, 4, and 5; t is an integer selected from 1, 2, 3, 4, or 5; and p is an integer selected from 1, 2, 3, 4, or 5. <EOS>