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2. Acrylamido-2-methylpropanesulfonic Acid Sodium Salt (AMPS-Na)
   CAS No.: 5165-97-9

Applications:

2-Acrylamido-2-methylpropanesulfonic Acid Sodium Salt (AMPS-Na).It is a monomer with high reactivity and high hydrophilicity, and also a polymerizable surfactant with a product molecular weight of 229.23.

The acrylamide group can promote polymerization reactions; the side methyl group and sodium methylsulfonate can effectively prevent amino hydrolysis and thermal degradation; the sulfonic group exhibits hydrophilicity and ionic characteristics at any pH value.

Research results on the gel, particle size, surface charge density, and latex stability generated during the synthesis of emulsion show that the polymer has the characteristics of polyelectrolyte and forms an ionization layer on the surface of latex particles by adsorption, thereby increasing the stability of the latex.

It can not only replace carboxylic acid monomers (such as acrylic acid, methacrylic acid, etc.), but also reduce the usage amount of other surfactants, making pure acrylic, vinyl acetate-acrylic, and styrene-acrylic emulsions resistant to divalent cations, with good hydrolysis resistance and thermal stability; products made from the emulsion have a smooth, flexible, and comfortable touch, and the scrub resistance of the colloid film is significantly improved.

It can be used in industries such as industry, daily chemicals, and polymer synthesis, such as water treatment agents, mining, flocculants, oilfield chemicals, medical supplies, cosmetics, detergents, fabric adhesives and finishing agents, paper coating finishing agents, polymer emulsions, coatings and adhesives, super absorbent thickeners, leak-proof and sealing agents, etc. It can also be used as the third monomer for synthetic fibers.
Molecular Structure Formula:

Biodegradation and Environmental Protection

• AMPS-Na has not been listed by the state as a substance harmful to the environment. This product is biodegradable.

Health and Safety

• The product is non-irritating and will not pose a danger to the human body under general industrial conditions. Long-term and excessive intake should be avoided.

Storage and Operation

• Store AMPS-Na in a cool and ventilated place with a storage temperature below 26°C. Seal the container when not in use.
• Wear protective equipment (such as goggles, gloves, etc.) during operation.
• Materials such as calcium plastic, enamel, and stainless steel are all suitable for the storage and processing of the product.
• Strong acids, strong bases, oxidants, and catalysts should be avoided. Polymerization inhibitors and high-purity oxygen have excellent polymerization inhibition effects.
• Under normal circumstances, the product can be stored for at least one year.

CAS number 5165-97-9 corresponds to the substance 2-acrylamide-2-methylpropane sulfonate sodium salt. The relevant introduction is as follows:

Basic information
English name: 2-Acrylamido-2-methyl-1-propanesulfonic acid sodium salt, HAPS-NA for short
EINECS number: 225-948-4
Molecular weight: 229.229
Physical and chemical properties: The appearance is colorless to light yellow liquid, the density is 1.2055
Use: It is an important polymeric surfactant, which can be used to synthesize polymer materials with special properties, such as the preparation of temperature and salt resistant polymer for oil displacement. Some copolymers synthesized with it as the base material have good resistance to high temperature and high salt, and have important applications in oil exploitation and other fields.

Sodium 2-acrylamide-2-methylpropane sulfonate has the following main uses :

• Water treatment field: can be used as an important raw material of water treatment agent, used for the synthesis of water treatment agents with high efficiency flocculation, dispersion, scale inhibition and other properties. It can interact with impurities and suspended matter in water to coagulate and precipitate, achieve the purpose of purifying water quality, and is widely used in industrial wastewater treatment, drinking water purification and other scenarios.

• Oilfield chemicals: In the field of oilfield exploitation, it is used to prepare temperature-resistant and salt-resistant flooding polymers. It can improve oil displacement efficiency, increase oil recovery, and maintain good stability and performance in high temperature and high salt reservoir environment.

• In the field of emulsion polymerization: it is a aggregable surfactant used as a functional monomer in emulsion polymerization. It can participate in the polymerization reaction, so that the emulsion has low viscosity and high stability, but also improve the adhesion, thermal stability and antistatic property of the paint film, and improve the water resistance and scrub resistance of the latex paint.

• Cosmetics: used in the formulation of cosmetics, such as skin care products, hair gels, etc. It can adjust the rheological property of the product, increase the stability of the product, and also play a role in moisturizing and moisturizing, so that the product has a better use effect and texture.

• Pharmaceutical field: It can be used to prepare some biomedical materials, such as drug sustained-release carriers, tissue engineering scaffolds, etc. Its hydrophilicity and biocompatibility characteristics help to improve the performance and effect of the material in the biological body.

• Paper industry: Applied in paper coating finishing agent, it can improve the water resistance, strength and surface smoothness of paper, improve the printability and friction resistance of paper.

• Other fields: It can also be used in the production of flocculants, fabric adhesives and finishing agents in the mining industry, high water absorbent thickeners, leak proofing and sealants, and can also be used as the third monomer of synthetic fibers to improve the performance of synthetic fibers.