2-Acrylamide-2-Methylpropanesulfonic Acid

Introduction：2-acrylamido-2-methylpropanesulfonic acid (AMPS) is a water-soluble sulfonic acid group with strong anion, which makes it have salt resistance, high temperature resistance, dyeing affinity, conductivity, ion exchange and good tolerance to divalent cations; Amide group makes it have good hydrolysis stability, acid and alkali resistance and thermal stability; The active double bond makes it have the property of addition polymerization and can produce copolymers with a variety of hydrocarbon monomers.

CAS: 15214-89-8

Molecular formula：C7H13NO4S

Molecular weight：207.25

Structure：

Physicochemical properties：White crystal solid. Melting point 195 ℃ (decomposition). Soluble in water, the solution is acidic. It is soluble in dicarbonamide, partially soluble in methanol, ethanol and difficult to dissolve in acetone. Slightly sour.

Uses：The product has polymerizable vinyl and hydrophilic sulfonic groups in the molecule, and can be copolymerized with water-soluble monomers such as acrylonitrile and acrylamide, and non-water-soluble monomers such as styrene and vinyl chloride. The introduction of hydrophilic sulfonic acid groups into polymers makes fibers and films hygroscopic, permeable and conductive. It can be used in papermaking industry and wastewater treatment. As coating modifier, fiber modifier and medical polymer. 2-acrylamide-2-methylpropanesulfonic acid can be homopolymerized or copolymerized. The average polymerization heat of 2-acrylamide-2-methylpropanesulfonic acid in water is 22 kcal / kuramide, which can be used as the polymerization medium. Generally, water-soluble ammonium persulfate and hydrogen peroxide are used as initiators. Common monomers with 2-acrylamide-2-methylpropanesulfonic acid include acrylonitrile, acrylic acid, acrylamide, styrene, ethyl acetate, etc.