What are the Applications of AMPS Monomer?

Posted on: December 22, 2023

2-Acrylamido-2-methylpropane sulfonic acid, widely called AMPS, is a sulfonic acid monomer with the chemical instructions C7H13NO4S. As a water-soluble, crystalline solid, it produces various polymers and copolymers for multiple applications. 

Here is a more detailed explanation of the AMPS monomer 2-acryl amido-2-methyl propane sulfonic acid (CAS No. 15214-89-8): 

Chemical Structure 

2-acryl amido-2-methyl propane sulfonic acid (CAS No. 15214-89-8) is a derivative of acrylic acid and is classified as an acrylamide. Its structure consists of an acrylamide group with an additional methyl group and a sulfonic acid group attached to the nitrogen atom. The chemical structure is as follows: 

CH2 =CH (CONH2) CH(CH3) SO3 H 


  1. Solubility: AMPS is highly soluble in water, making it suitable for water-based applications. 
  2. Acidic Nature: The sulfonic acid group makes AMPS monomer acidic, contributing to its reactivity in various polymerization processes. 

Chemical properties of 2-acrylamido-2-methyl propane sulfonic acid 

  • Molecular formula: C7H13NO4S 
  • Purity: >= 99.0% 
  • Acid number: 265-275 mgKOH/g 
  • Iron: <=10 mg/kg 
  • Water: <=0.3% 
  • CAS Number: 15214-89-8 

Applications of AMPS Monomer 

Polymer Production: 

  • Copolymers: AMPS is often copolymerized with other monomers to produce polymers with specific properties. The monomer copolymers are used for water treatment, enhanced oil recovery, and as additives in diverse industries. 
  • Superabsorbent Polymers (SAPs): AMPS monomer is a critical component in the manufacturing of superabsorbent polymers, which are widely used in diapers, sanitary napkins, and other hygiene products due to their ability to absorb and retain enormous quantities of water. 

Water Treatment: 

  • Scale Inhibition: Copolymers containing 2-acryl amido-2-methyl propane sulfonic acid (CAS No. 15214-89-8) are utilized in water treatment processes to inhibit the formation of mineral scales in industrial equipment, such as boilers and cooling systems. 
  • Flocculants: AMPS-containing polymers are used as flocculants to enhance the coagulation and flocculation processes in water and wastewater treatment, aiding in removing suspended particles. 

Enhanced Oil Recovery (EOR): 

  • Viscosity Modifiers: AMPS-based polymers are employed in EOR processes to enhance water viscosity, improving reservoir oil displacement. 

Salinity and Temperature Tolerance: 

  • AMPS-based polymers are known for their tolerance to high salinity and temperature conditions commonly found in oil reservoirs. 
  • This characteristic ensures the stability and effectiveness of the polymers in harsh reservoir environments. 

Textile Industry: 

Thickeners, dispersants, sizing agents for textiles, and non-woven emulsion binders. 

Acrylic Fibers:  

  • AMPS-based polymers produce acrylic fibres, providing desirable properties such as strength and dyeability. 

Emulsion Polymerization: 

  • AMPS monomer is used in emulsion polymerization processes to produce polymers suitable for various textile applications. 
  • The resulting polymers can be applied as coatings or finishes to textiles to impart specific properties. 


  • Polymers based on AMPS have superior lubricity and dispersibility, and they make ideal auxiliaries for flow control in building materials. 

AMPS Monomer plays a crucial role in synthesizing polymers and copolymers with diverse applications in water treatment, enhanced oil recovery, personal care products, and the textile industry. Its water-solubility, reactivity, and ability to impart specific characteristics to polymers make it valuable in various industrial processes. As technology and research progress, the range of applications for AMPS-based polymers is likely to expand further. As one of the leading dispersing agent manufacturers of AMPS, Vinati Organics help your business grow by providing this monomer for various applications in daily use. Contact us to find out about orders and details about the packaging.