US 11,814,473 B2
Polytriazole copolymer compositions
Husnul Maab, Dhahran (SA); Nayef M. Alanazi, Dhahran (SA); and Turki A. Al-Khaldi, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jan. 4, 2021, as Appl. No. 17/140,685.
Application 17/140,685 is a continuation of application No. 16/931,565, filed on Jul. 17, 2020, abandoned.
Prior Publication US 2022/0017688 A1, Jan. 20, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C08G 61/12 (2006.01)
CPC C08G 61/123 (2013.01) [C08G 2261/12 (2013.01); C08G 2261/148 (2013.01); C08G 2261/3221 (2013.01); C08G 2261/334 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A polytriazole copolymer having a structure according to formula (I):

OG Complex Work Unit Chemistry
where:
R1 and R2 are independently selected from —C(CF3)2— and —O—;
R3 and R4 are independently selected from substituted phenyls according to formula (a) and substituted benzyls according to formula (b):

OG Complex Work Unit Chemistry
where:
X1, X2, X3, X4, and X5 are independently selected from hydrogen, bromo, fluoro, chloro, iodo, trifluoromethyl, dimethylamino, tert-butyl, carboxyl, triphenylmethyl, tris(4-fluorophenyl)methyl, tris(4-methylphenyl)methyl, (4-hydroxyphenyl)diphenylmethyl, and difluoromethoxy, provided at least one of X1, X2, X3, X4, or X5 on each R3 and each R4 is not hydrogen;
m and n represent monomer mole fractions in the polytriazole copolymer;
0<m<1;
0<n<1;
m+n=1,
provided that when R1 and R2 are identical, R3 and R4 are not identical,
the polytriazole copolymer having a degree of polymerization from 25 to 250.