2-Acrylamido-2-methylpropanesulfonic acid-acrylic acid copolymer CAS 40623-75-4

CAS: 40623-75-4

Purity: 40%

Molecular Formula: C10H17NO6S

Molecular Weight: 279.31

Synonym: AcrylicAcid-2-AcrylicAMide-2-MethylPropaneSulfonate-AMpsCopolyMer; ACRYLICACID/APSACOPOLYMER/HPATERPOLYMER(AA/APSA/HPA); prop-2-enoicacid,2-(prop-2-enoylamino)butane-2-sulfonicacid; 2-acrylamido-2-methylpropanesulfonicacid acrylicacidcopolymer; 2-Propenoicacidpolymerwith2-methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonicacid; aa-ampsa; AcrylicAcid/Acrylate/PhosphonicAcid/SulfosaltTetra-copolymer(TH-241); SulfonatedPolyacrylicAcidCopolymer

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What is 2-Acrylamido-2-methylpropanesulfonic acid-acrylic acid copolymer CAS 40623-75-4?

Acrylamide-2-methylpropanesulfonic acid copolymer (AA/AMPS) is a novel water-soluble polymer synthesized by free radical copolymerization of acrylic acid (AA) and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) monomers. Its molecular structure contains carboxyl (- COOH), amide (- CONH ₂), and sulfonic acid (- SO3H) groups, which have excellent scale inhibition, dispersion, temperature and salt resistance properties. 2-Acrylamido-2-methylpropanesulfonic acid-acrylic acid copolymer is a core functional polymer material in industrial water treatment, oil and gas extraction, daily chemical and other fields.

Specification

ITEM	STANDARD
Appearance	Colorless to pale yellow viscous liquid
Solid content, %	40.0 min
Free monomer (as AA), %	0.5 max
Density(20℃), g/cm3	1.15 min
pH (1% water solution)	3.5-4.5

Application

1. Industrial circulating cooling water system: As the main scale inhibitor and dispersant, it is used in high hardness, high alkalinity, and high chloride ion circulating water systems in industries such as power, chemical, steel, and metallurgy. 2-Acrylamido-2-methylpropanesulfonic acid-acrylic acid copolymer focuses on inhibiting the deposition of calcium carbonate, calcium sulfate, barium sulfate, silicon scale, and iron oxide (rust scale), protecting heat exchangers and pipelines from scaling effects.

2. In the field of oil and gas extraction, drilling fluid/completion fluid: as a viscosity reducer and shale inhibitor, 2-Acrylamido-2-methylpropanesulfonic acid-acrylic acid copolymer stabilizes the wellbore and prevents drilling fluid from failing due to high temperature and high salt (such as salt deposits and gypsum layers).

3. Boiler and steam system: 2-Acrylamido-2-methylpropanesulfonic acid-acrylic acid copolymer used for water treatment of medium and high pressure boilers, to suppress the formation of scale inside the boiler, and to disperse corrosion products (such as iron oxide) in the water, avoiding them from adhering to the heating surface of the boiler and forming "corrosion under scale".

4. Daily chemical and textile industries, detergents: 2-Acrylamido-2-methylpropanesulfonic acid-acrylic acid copolymer as chelating and dispersing agents, enhance the chelating ability of calcium and magnesium ions in water, improve the cleaning effect, and prevent the re deposition of dirt.