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US 12,668,659 B2Granted
Copoly(1,2,4-triazole)s membranes for sour mixed-gas separation applications
AssigneeSaudi Arabian Oil Company
InventorsAli Hayek, Abdulkarim Alsamah
Life of this patent
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Abstract
This disclosure relates to polymers and polymeric membranes that incorporate functionalized copoly(1,2,4-triazole)s. The polymers and polymeric membranes can be used in sour natural gas separation applications.
Claims18
A polymer comprising:
- a monomer unit of Formula VIIa:
- and a monomer unit of Formula VIIIa:
- wherein
- R1 is hydroxyl;
- R2-R5 are hydrogen;
- R′2 is methyl;
- R′3 is methyl;
- and
- R′1, R′4, and R′5 are each hydrogen, wherein the ratio of min is between 1:10 and 10:1 and wherein the polymer has a number-average molecular weight of about 1,000 g/mol to about 1,000,000 g/mol.
6 more elements
A polymer comprising:
- a monomer unit of Formula VIIa:
- and a monomer unit of Formula VIIIa:
- wherein
- R2 is-CH2—Br;
- R3 is methyl;
- R1, R4, and R5 are each hydrogen;
- and
- R′1—R′5 are each independently selected from hydrogen, alkyl, hydroxyl, alkoxy, halogen, aromatic, and cyclic functional groups, at least one of R′1—R′5 is not hydrogen, and wherein at least one of R1-R5 is different from at least one of R′1—R′5, wherein the ratio of m:n is between 1:10 and 10:1 and wherein the polymer has a number-average molecular weight of about 1,000 g/mol to about 1,000,000 g/mol.
5 more elements
Dependencies are inferred from the claim text.