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EC / List no.: 239-268-0
CAS no.: 15214-89-8
Mol. formula: C7H13NO4S
AMPS (2-Acrylamido-2-methylpropane sulfonic acid) is a reactive, hydrophilic, sulfonic acid acrylic monomer used to alter the chemical properties of wide variety of anionic polymers.
In the 1970s, the earliest patents using this monomer were filed for acrylic fiber manufacturing.
Today, there are over several thousands patents and publications involving use of AMPS (2-Acrylamido-2-methylpropane sulfonic acid) in many areas including water treatment, oil field, construction chemicals, hydrogels for medical applications, personal care products, emulsion coatings, adhesives, and rheology modifiers.
Chemical Properties
AMPS (2-Acrylamido-2-methylpropane sulfonic acid) is WHITE POWDER
Uses
AMPS (2-Acrylamido-2-methylpropane sulfonic acid) is an important monomer.
Its copolymers or homopolymers with different molecular weight can be widely used in textile, oil drilling, water treatment, papermaking, dying, coating, cosmetics, electronics, etc. because of its unique formular structure—containing sulfonic acid group and unsaturated radical, thus showing excellent properties in many aspects.
Use and Manufacturing
Household & Commercial/Institutional Products
Information on 1 consumer products that contain Polyacrylamidomethylpropane Sulfonic Acid in the following categories is provided:
• Personal Care
• Plastic products, industry for plastics, manufacturing of plastics, plastic additives
• Includes food packaging, paper plates, cutlery, small appliances such as roasters, etc.; does not include facilities that manufacture food
• Plastic products, industry for plastics, manufacturing of plastics, plastic additives
• General fuels, fuel additives, motor/automotive fuels
• Crude oil, crude petroleum, refined oil products, fuel oils, drilling oils
• Raw materials used in a variety of products and industries (e.g. in cosmetics, chemical manufacturing, production of metals, etc).
• Related to fracking, natural gas, industrial gases
• Surface treatments for metals, hardening agents, corrosion inhibitors, polishing agents, rust inhibitors, water repellants, etc
Industry Uses
• Intermediates
• Solids separation agents
• Surface active agents
Consumer Uses
• Fabric, textile, and leather products not covered elsewhere
General Manufacturing Information
Industry Processing Sectors
• All other basic organic chemical manufacturing
• All other chemical product and preparation manufacturing
Usage:
The 2-AMPS-A has the excellent synthesis, adsorptivity, biological activity, surface activity, hydrolytic stability and thermal stability.
It can be used in co-polymerization and in addition reaction, it is widely used in water treatment , oilfield chemicals,chemical fiber,water absorbent material,plastics,paper making,spinning,printing and dyeing,biomedicine,magnetic material and makeup etc.
Synthetic fibre: The 2-AMPS-A is the important monomer which could improve the combination property of some synthetic fibre, in particular, the orion and the modacrylic fiber with chloride, the dosage is the 1%-4% of the fiber, it could improve the white content,dyeing property,antistatic,ventilation property and flame resistance.
The application for the textile: The copolymer of the acrylamide-2-methylpropane sulfonic acid ,ethyl acetate and acrylic acid, it is the ideal size of the cotton and the polyester blend fabric, it has the characteristic of easy to use and easy to remove by water.
Paper making: The copolymer of the acrylamide-2-methylpropane sulfonic acid with other water-soluble monomer, this is the indispensable chemical in all kinds of paper making factory, it could be used as the drainage aid and on gel, it could increase the strength of the paper, it also could be used as the pigment dispersing agent of color coating.
2-Acrymido-2-Methyl Propane Sulfuric Acid (AMPS) is a monomer that has unique structure containing the sulfonic acid group.
This product appears as a white powder, and can be used in adhesives, paper coatings, and architectural and industrial coatings.
AMPS is an important monomer. Its copolymers or homopolymers with different molecular weight can be widely used in textile, oil drilling, water treatment, papermaking, dying, coating, cosmetics, electronics, etc. because of its unique formular structure-containing sulfonic acid group and unsaturated radical, thus showing excellent properties in many aspects.
AMPS is white powder. AMPS is an important monomer.
Its copolymers or homopolymers with different molecular weight can be widely used in textile, oil drilling, water treatment, papermaking, dying, coating, cosmetics, electronics, etc. because of its unique formular structure-containing sulfonic acid group and unsaturated radical, thus showing excellent properties in many aspects.
AMPS is an important monomer, has good complexion, adsorption, biological activity, surface activity, hydrolysis stability and thermal stability.
Hydrolytic and thermal stability: The geminal dimethyl group and the sulfomethyl group combine to sterically hinder the amide functionality and provide both hydrolytic and thermal stabilities to AMPS-containing polymers.
Polarity and hydrophilicity: The sulfonate group gives the monomer a high degree of hydrophilicity and anionic character at wide range of pH.
In addition, AMPS is absorbing water readily and also imparts enhanced water absorption and transport characteristics to polymers.
Solubility: AMPS is very soluble in water and dimethylformamide (DMF) and also shows limited solubility in most polar organic solvents.
Inhibition of divalent cation precipitation: Sulfonic acid in AMPS is a very strong ionic group and ionizes completely in aqueous solutions.
In applications where the precipitation of mineral salts is undesirable, the incorporation of a polymer containing even a small quantity of AMPS can significantly inhibit the precipitation of divalent cations.
The result is a significant reduction in the precipitation of a wide variety of mineral salts, including calcium, magnesium, iron, aluminum, zinc, barium and chromium.
Determining viscosity-average molecular weight.
2-Acrylamido-2-Methylpropane Sulfonic Acid (AMPS) is a kind of vinyl monomer that contains sulfonic acid gene.
In aqueous solution, AMPS monomer has a very slow rate of hydrolysis, and its sodium aqueous solution has an excellent anti-hydrolysis performance when the pH is greater than 9.
In acidic conditions, the anti-hydrolysis performance of AMPS homopolymer is much higher than that of polyacrylamide.
Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer is the copolymer of acrylic acid and 2-acrylanmido-2-methylpropanesulfonic acid.
Due to including carboxylic group (scale inhibition and dispersion) and sulfonic acid group (strong polarity) in this copolymer, Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer has high calcium tolerance and good scale inhibition for calcium phosphate, calcium carbonate and zinc scale.
When built with organophosphines, the synergic effect is obvious.
Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer is suitable to be used in water quality of high pH and high alkaline, it is one of the ideal scales inhibitors and dispersants on high concentration index.
Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer can be used as a scale inhibitor and dispersant in an open circulating cool water system, oilfield refill water system, metallurgy system, and iron & steel plants to prevent sediment of ferric oxide.
When built with organophosphorus and zinc salt, the suitable pH value is 7.0~9.5.
Acrylic Acid-2-Acrylamido-2-Methylpropane Sulfonic Acid Copolymer can also be used as dyeing auxiliaries for textile.
Applications:
Acrylic fiber: A number of enhanced performance characteristics are imparted to acrylic, modified-acrylic, polypropylene and polyvinylidene fluoride fibers: dye receptivity, moisture absorbency, and static resistance.
Coating and adhesive: Its sulfonic acid group gives the monomers ionic character over a wide range of pH.
AMPS is used as Acrylic fiber, Coating and adhesive, Detergents, Personal care, Medical hydrogel, Oil field applications, Water treatment applications, Crop protection, Membranes, and Construction applications.
Anionic charges from AMPS fixed on polymer particles enhance the chemical and shear stabilities of polymer emulsion and also reduce the number of surfactants leaching out of paint film.
It improves the thermal and mechanical properties of adhesives and increases the adhesive strength of pressure-sensitive adhesive formulations.
Detergents: Enhances the washing performance of surfactants by binding multivalent cations and reducing dirt attachment.
Personal care: Strong polar and hydrophilic properties introduced to a high molecular weight AMPS homopolymer are exploited as a very efficient lubricant characteristic for skincare.
Medical hydrogel: High water-absorbing and swelling capacity when AMPS is introduced to a hydrogel are keys to medical applications.
Hydrogel with AMPS showed uniform conductivity, low electrical impedance, cohesive strength, appropriate skin adhesion, and biocompatible and capable of repeated use and have been used to electrocardiograph (ECG) electrodes, defibrillation electrode, electrosurgical grounding pads, and iontophoretic drug-delivery electrodes.
In addition, polymers derived from AMPS are used as the absorbing hydrogel and the tackifier component of wound dressings.
It Is used due to its high water absorption and retention capability as a monomer in superabsorbents e.g. for baby diapers.
Oil field applications: Polymers in oil field applications have to stand in hostile environments and require thermal and hydrolytic stability and resistance to hard water-containing metal ions.
For example, in drilling operations where conditions of high salinity, high temperature, and high pressure are present, AMPS copolymers can inhibit fluid loss and be used in oil field environments as scale inhibitors, friction reducers and water-control polymers, and in polymer flooding applications.
Water treatment applications: The cation stability of the AMPS-containing polymers is very useful for water treatment processes.
Such polymers with low molecular weights cannot only inhibit calcium, magnesium, and silica scale in cooling towers and boilers but also help corrosion control by dispersing iron oxide.
When high molecular weight polymers are used, they can be used to precipitate solids in the treatment of industrial effluent streams.
Crop protection: increases in dissolved and nanoparticulate polymer formulations bioavailability of pesticides in aqueous-organic formulations.
Membranes: It increases water flow, retention, and fouling resistance of asymmetric ultrafiltration and microfiltration membranes and is being studied as an anionic component in polymer fuel cell membranes.
AMPS is used in many areas due to its nature of both copolymerization and homopolymerization, including oilfield chemistry, water-treatment, synthetic fibers, printing and dyeing, plastic, paper-making, water-absorbent coatings, biomedical, magnetic materials and cosmetics.
AMPS is a reactive, hydrophilic, sulfonic acid acrylic monomer used to alter the chemical properties of a wide variety of anionic polymers.
AMPS is a kind of vinyl monomer with the sulfonic acid group, which has good thermal stability.
The decomposition temperature can be up to and the temperature of sodium salt copolymer can reach.
Its hydrolysis is very slow in an aqueous solution.
Sodium salt solution has good anti-hydrolysis performance with a high PH value.
Under acid conditions, the hydrolysis-resistant performance of its copolymer is better than that of polyacrylamide.
The monomer can be made into a crystal or sodium salt solution.
AMPS is used in many areas including water treatment, oil field, construction chemicals, hydrogels for medical applications, personal care products, emulsion coatings, adhesives, and rheology modifiers.
1. Water treatment: Homopolymer of AMPS monomer or copolymers with acrylamide, acrylic acid monomer, could be as sludge dehydrating agent in the sewage purification process.
As preservatives of the iron, zinc, aluminum, copper and alloy in the closed water circulation systems, they also could be used as cleaning and inhibitor of heaters, cooling towers, air purifiers and gas purification device.
2. Oilfield chemistry: This product is developed rapidly in the application of oilfield chemistry.
Application field covers such as oil well cement additives, treatment agent of drilling fluid, acidizing fluids, fracturing fluids, completion fluids and workover fluids additives.
3. Synthetic fibers: The AMPS is an important monomer that could change the combination property of some synthetic fiber, particularly in the Orion and the modacrylic fiber with chloride, and the dosage is 1%-4% of the fiber.
It could significantly improve the fiber whiteness, dyeability, antistatic, permeability, and flame resistance properties.
4. Textile pulp: 2 - acrylamido -2 - methyl-propanesulfonic acid and ethyl acetate and the acrylic acid copolymer is an ideal slurry of cotton and polyester blended fabric, with the characteristics of using easily and being removed easily by water.
5. Papermaking: The copolymer of 2 - acrylamido -2 - methyl-propane sulfonic acid and other water-soluble monomer is an indispensable chemical for all kinds of paper making factories, which can be used not only as drainage aids, the adhesives, increasing the strength of paper, but also be used as a color-coated pigment dispersant.
Construction applications
Superplasticizers with AMPS are used to reduce water in concrete formulations.
Benefits of these additives include improved strength, improved workability, improved durability of cement mixtures.
Redispersible polymer powder, when AMPS is introduced, in cement mixtures, control air pore content and prevent agglomeration of powders during the spray-drying process from the powder manufacturing and storage.
Coating formulations with AMPS-containing polymers prevent calcium ions from being formed as lime on the concrete surfaces and improve the appearance and durability of the coating.
Production
AMPS is made by the Ritter reaction of acrylonitrile and isobutylene in the presence of sulfuric acid and water.
The recent patent literature describes batch and continuous processes that produce AMPS in high purity (to 99.7%) and improved yield (up to 89%, based on isobutene) with the addition of liquid isobutene to an acrylonitrile / sulfuric acid / phosphoric acid mixture at 40°C.
Properties
Hydrolytic and thermal stability: The geminal dimethyl group and the sulfomethyl group combine to sterically hinder the amide functionality and provide both hydrolytic and thermal stabilities to AMPS-containing polymers.
Polarity and hydrophilicity: The sulfonate group gives the monomer a high degree of hydrophilicity and anionic character at wide range of pH. In addition, AMPS is absorbing water readily and also imparts enhanced water absorption and transport characteristics to polymers.
Solubility: AMPS is very soluble in water and dimethylformamide (DMF) and also shows limited solubility in most polar organic solvents.
Solvent Solubility (gAMPS/100 g solvent)
Water: 150
Dimethylformamide: >100
N-Methyl-2-pyrrolidone: 80
Methanol: 8.7
Inhibition of divalent cation precipitation: Sulfonic acid in AMPS is a very strong ionic group and ionizes completely in aqueous solutions.
In applications where the precipitation of mineral salts is undesirable, the incorporation of a polymer containing even a small quantity of AMPS can significantly inhibit the precipitation of divalent cations.
The result is a significant reduction in the precipitation of a wide variety of mineral salts, including calcium, magnesium, iron, aluminum, zinc, barium and chromium.
IUPAC NAMES
(1Z)-N-(2-methyl-1-sulfopropan-2-yl)prop-2-enimidic acid
1-Propanesulfonic acid, 2-methyl-2-[(1-oxo-2-propen-1-yl)amino]-
1-PROPANESULFONIC ACID, 2-METHYL-2-[(1-OXO-2-PROPENYL)AMINO]
1-Propanesulfonic acid, 2-methyl-2-[(1-oxo-2-propenyl)amino]-
2-(acryloylamino)-2-methylpropane-1-sulfonic acid
2-Acrylamido-2-Methylpropanesulfonic Acid
2-Acrylamido-2-methylpropanesulfonic Acid
2-Acrylamido-2-methylpropanesulfonic acid
2-Acrylamido-2-methylpropanesulphonic acid
2-acrylamido-2-methylpropanesulphonic acid
2-acrylamido-2-methylpropanesulphonic acid
2-Acryloylamino-2-methylpropane-1-sulfonic acid
2-Acryloylamino-2-methylpropansulfonsäure
2-methyl-2-(prop-2-enoylamino)propane-1-sulfonic acid
2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid
Acrylamide tert-butylsulfonic acid
Acrylamido-2-methylpropane sulfonic acid
AMPS/ATBS
ATBS
ATBS
SYNONYMS:
1-Propanesulfonicacid,2-methyl-2-[(1-oxo-2-propenyl)amino]-
2-Acrylamido-2-methyl-1-propane
2-acrylamido-2-methylpropanesulfonate
1-Propanesulfonic acid, 2-methyl-2-[(1-oxo-2-propen-1-yl)amino]-
2-ACRYLAMIDE-2-METHYLPROPANESULFONIC ACID
2-ACRYLAMIDO-2-METHYL-1-PROPANESULFONIC ACID
2-ACRYLAMIDO-2-METHYLPROPANESULFONIC ACID
2-ACRYLAMIDO-2-METHYLPROPANESULPHONIC ACID
2-METHYL-2-[(1-OXO-2-PROPENYL)AMINO]-1-PROPANESULFONIC ACID
LABOTEST-BB LT00012662
2-Acryloylamino-2-methyl-1-propanesulfonic acid
2-ACRYLOYLAMIDO-2-METHYLPROPANESULFONIC ACID MONOMER
ACRYLAMIDO BUFFER SOLUTION PK 1, 0.2 M I N WATER, STAB.
ACRYLAMIDO BUFFER PK 1
2-Acrylamide-2-MethyylPropaneSodiumSulfonate
2-Acryloylamino-2-Methyl-1-Pro
2-Acrylamide-2- Methyl Propane Sulfonic Acid（AMPS）
ACRYLAMIDOMETHYLPROPANESULPHONICACID
2-Acrylamido-2-methylpropansulfonsaeure
-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic aci
2-Acrylamido-2-Methylpropane Sulphonic Acid (AMPS)
2-Acrylamide-2-methylpro panesulfonic acid，2-Methyl-2-[(1-oxo-2-propenyl)amino]
2-Methyl-2-(prop-2-enoylamino)propane-1-sulfonic aci
AMPS 2-Acrylamide-2-methylpropanesulfonic acid in stock Factory
2-Acrylamide-2-methylpro panesulfonic acid Na
ampsna
P(DMDAAC/AM/AMPS)
2-ACRYLAMIDO 2-METHYLAPROPANE SULPHONIC ACID (ATBS)
2-Acrylanmido-2-methylpropanesulfonic acid
2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonicaci
ACRYLAMIDO BUFFER
AMPS
AMPS MONOMER
TBAS
2-ACRYLOYLAMIDO-2-METHYLPROPANESULFONIC ACID
Lubrizol AMPS
TBAS-Q
2-Acrylamido-2-methylpropanesulfonic acid,97%
tert-Butylacrylamidesulfonic acid
2-Acrylamide-2-methy
AcrylaMido-Tertiary Butyl Sulphonic Acid (ATBS)
2-AcrylaMido-2-Methylpropanesulfonic acid, 97% 5GR
2-acrylaMido-2--1- Methylpropane sulfonic acid
2-AcrylaMido-2-Methyl-1-propanesulfonic acid 99%
2-Acrylamido-2-methylpropane-1-sulfonic acid
2-Acrylamido-2-methylpropanesulfonic acid for synthesis
2-Acrylamido-2-methylpropanesulfonicAcid>
2-Acrylamide-2-methylpropanesulfonic acid,98%
AMPS STAB FOR SYNTHESIS 100 G
AMPS STAB FOR SYNTHESIS 500 G
2-AcryL
amido-2-methyL
2-Acrylamide-2-methylpropanesulfonic acid fandachem
Acrylamido-tertiary-butylsulfonic acid (ATBS)
2-Acrylamide-2-methylpropanesulfonicaci
2-Acrylamide-2-methylpropanesulfonic acid ISO 9001：2015 REACH
2-Acrylamide-2-methylpropanesulfonic acidCAS 15214-89-8
