Phosphonic compounds and methods of use thereof
Described herein are methods for producing phosphonic compounds and compounds thereof. Stable compositions of unsaturated phosphonic acid monomers are also described. Additionally, the synthesis and use of new polymers produced from phosphonic acid monomers are presented.
1. A copolymer produced by the process consisting of polymerizing (1) one or more olefinically unsaturated monomers selected from the group consisting of maleic acid, maleic anhydride, t-butylacrylamide, 2-acrylamido-2-methyl propane sulfonic acid (AMPS), vinyl acetate, vinyl cyclopropane, vinyl cyclopentane, vinyl cyclohexane, and any combination thereof and (2) at least one monomer comprising the formula IV
wherein R 1 -R 4 and R 7 , independently, is selected from the group consisting of hydrogen, an alkyl group, a cycloalkyl group, a heteroalkyl group, a heterocycloalkyl group, an aryl group, a heteroaryl group, a protecting group, or a combination thereof, or R 2 and R 4 form a substituted or unsubstituted cycloalkyl group, wherein R 1 -R 4 and R 7 are not simultaneously hydrogen.
2. The polymer of claim 1 , wherein R 2 and R 3 are hydrogen.
3. The polymer of claim 2 , wherein R 1 and R 7 are hydrogen.
4. The polymer of claim 3 , wherein R 4 is an aryl group or a heteroaryl group.
5. The polymer of claim 3 , wherein R 4 is a substituted or unsubstituted phenyl group or a substituted or unsubstituted benzyl group.
6. The polymer of claim 3 , wherein R 4 is CH 2 C 6 H 4 -p-S(O) 2 OH.
7. The polymer of claim 1 , wherein R 4 is an alkyl group.
8. The polymer of claim 7 , wherein the alkyl group is selected from the group consisting of methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, and hexyl.
9. The polymer of claim 1 , wherein R 4 is a cycloalkyl group, and the cycloalkyl group is selected from the group consisting of cyclopropyl, cyclobutyl, cyclopentyl, and cyclohexyl.
10. The polymer of claim 1 , wherein R 4 is selected from the group consisting of heptyl, octyl, decyl, tetradecyl, hexadecyl, eicosyl, and tetracosyl.
11. The polymer of claim 1 , wherein at least one of R 2 , R 3 , or R 4 is selected from the group consisting of an alkyl group, a cycloalkyl group, a heterocycloalkyl group, a heteroaryl group, a protecting group, and an aryl group substituted with one or more SO 2 R or S(O) 2 OR groups, where R is hydrogen or an alkyl group.
12. A method for inhibiting scale formation in a system comprising applying to the system the polymer of claim 1 .
13. A method for inhibiting corrosion in a system comprising applying to the system the polymer of claim 1 .
14. A method for inhibiting corrosion and scale formation in a system comprising applying to the system the polymer of claim 1 .
15. A method for making a copolymer consisting of polymerizing (1) one or more olefinically unsaturated monomers selected from the group consisting of maleic acid, maleic anhydride, t-butylacrylamide, 2-acrylamido-2-methyl propane sulfonic acid (AMPS), vinyl acetate, vinyl cyclopropane, vinyl cyclopentane, vinyl cyclohexane, and any combination thereof and (2) at least one monomer comprising the formula IV
wherein R 1 -R 4 and R 7 comprises, independently, hydrogen, an alkyl group, a cycloalkyl group, a heteroalkyl group, a heterocycloalkyl group, an aryl group, a heteroaryl group, a protecting group, or a combination thereof, wherein the polymerization product is not polyisopropenylphosphonic acid.