2-Acrylamide-2-methylpro panesulfonic acid

Product introduction

2-acrylamido-2-methylpropanesulfonic acid is a large-scale production successfully realized by Shouguang Yuyuan Chemical Co., Ltd. based on Colleges and universities and scientific research institutes. After years of painstaking research, the product quality fully meets the product standards of the United States and Japan, and the current output reaches 5000 tons / year.

Physical and chemical properties

This product is white crystalline powder, melting point 185 ℃, slightly sour, with strong moisture absorption. In case of moisture, amps monomer will polymerize by itself. Its aqueous solution is acidic, soluble in dimethylamide, partially soluble in methanol and ethanol, but difficult to dissolve in acetone.

Chemical properties

1. Molecular formula: C7H13N04S

2. Molecular weight: 207.24

3. PH value: the pH value of 0.1% (weight ratio) aqueous solution is 2.6, and its sodium salt solution is neutral.

4. Stability: stable at room temperature. In aqueous solution, the rate of monomer hydrolysis is very slow, but polymerization inhibitor must be added to prevent its self polymerization; The aqueous solution of sodium salt has excellent hydrolysis resistance under the condition of pH value of 9; Homopolymer has good thermal stability.

5. Polymerizability: amps monomer can be homopolymerized or copolymerized. The average polymerization heat of AMPs in water is 22 kcal / mol. both water and dimethylformamide can be used as polymerization media.

AMPS application

Amps structural formula contains strong anionic and water-soluble sulfur groups, shielded amide groups and unsaturated double bonds, which makes it have excellent comprehensive properties. Amps has good binding, adsorption, biological activity, surface activity, hydrolysis stability and thermal stability. It can be used for copolymerization and processing reaction. It can be widely used in various fields such as water treatment, oilfield chemistry, chemical fiber, water absorbent materials, plastics, coatings, papermaking, textile, printing and dyeing, biomedicine, magnetic materials and cosmetics.

1. Water treatment: homopolymer of AMPS monomer or copolymer with acrylamide, acrylic acid and other monomers can be used as sludge dehydrating agent in sewage purification process and as preservative of iron, zinc, aluminum, copper and alloy in closed water circulation system; It can also be used as descaling agent and scale inhibitor for heaters, cooling towers, air purifiers and gas purifiers.

2. Oilfield Chemistry: the application of products in oilfield chemistry has developed rapidly. The scope includes oil well cement admixture, drilling fluid treatment agent, acidizing fluid, fracturing fluid, completion fluid and workover fluid additives.

3. Synthetic fiber: amps is an important monomer to improve the comprehensive properties of some synthetic fibers, especially acrylic fiber or nitrile chlorine fiber. Its dosage is 1% - 4% of the fiber, which can significantly improve the whiteness, dyeability, antistatic, air permeability and flame retardancy of the fiber.

4. Textile size: copolymer of 2-acrylamide-2-methylpropanesulfonic acid, ethyl acetate and enoic acid. It is an ideal size for cotton and polyester blended fabrics. It is easy to use and easy to remove with water.

5. Papermaking: the copolymer of 2-acrylamido-2-methylpropanesulfonic acid and other water-soluble monomers is an indispensable chemical for all kinds of paper mills. It can be used as drainage assistant and sizing agent to increase the strength of paper. It can also be used as pigment dispersant for color coating.