Product Name
Methacrylic Acid
Chemical Name
2-Methylpropenoic Acid
CAS Number
79-41-4
Molecular Formula & Weight
C4H6O2 — 86.09 g/mol
Synonyms
MAA, 2-Methylacrylic acid, Isobutenecarboxylic acid
About Methacrylic Acid
Methacrylic Acid is a clear, colorless liquid or solid with a sharp, pungent odor. It is an unsaturated carboxylic acid known for its ability to undergo polymerization and copolymerization. As a reactive monomer, MAA serves as a core building block in the production of methacrylate esters and specialty polymers used in a wide range of industries.
Applications / Uses
MAA is used in specialty polymers and surface treatments:
- Coatings: Enhances hardness, weather resistance, and adhesion in automotive and industrial coatings.
- Adhesives & Sealants: Provides chemical resistance and thermal stability in reactive systems.
- Textile Finishing: Used in functional coatings and finishes that improve fabric performance.
- Acrylic Resins: Serves as a comonomer in the production of PMMA and other acrylate-based plastics.
- Construction: Found in concrete modifiers and waterproofing membranes for improved flexibility.
- Paper Industry: Used to create water-repellent and wet-strength additives in specialty papers.
Storage & Handling
- Store in a cool, dry, and well-ventilated area in tightly sealed, inhibitor-stabilized containers.
- Avoid exposure to heat, light, and ignition sources — MAA is flammable and can polymerize.
- Wear suitable PPE including chemical-resistant gloves, goggles, and protective clothing.
- Use local exhaust ventilation or respiratory protection to minimize inhalation exposure.
