Methyl methacrylate

CAS Number

80-62-6

Molecular Formula

C₅H₈O₂

Also known as:

Methyl methacrylate; MMA; 2-methylpropenoic acid methyl ester; methyl 2-methylpropenoate

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Product Description

Methyl Methacrylate (MMA) is a reactive acrylic monomer used as the primary feedstock for polymethyl methacrylate (PMMA) and as a co-monomer or reactive diluent in coatings, adhesives, sealants and specialty polymers. It offers rapid polymerizability, excellent optical clarity in polymers and broad compatibility with acrylic and methacrylic systems.

Applications

  • PMMA production
    Primary monomer for manufacture of polymethyl methacrylate (acrylic glass) used in sheets, castings and optical components.

  • Acrylic coatings & paints
    Used as monomer or reactive diluent in high-performance coatings, lacquers and UV-curable systems to impart hardness and clarity.

  • Adhesives & sealants
    Feedstock for structural acrylate adhesives, reactive hot-melt systems and sealants requiring fast cure and strong adhesion.

  • Copolymer production
    Co-monomer in styrene/acrylic and other copolymer systems for tailored mechanical and optical properties.

  • Casting & casting compounds
    Used in cast polymer formulations for optics, glazing, displays and specialty cast articles.

  • Functional monomer for specialty polymers
    Reactive monomer for surface modification, grafting and formulation of specialty/responsive polymers.

Technical Parameters

Parameter Value
Assay ≥ 99.5%
Water ≤ 0.05–0.15%
Melting point ≈ −48 °C
Boiling point ≈ 100–101 °C
Density ≈ 0.94–0.95 g·cm⁻³ (20 °C)
Refractive index (nD²⁰) ≈ 1.415–1.417
Flash point ≈ 10–18 °C

Applications

Film-forming Agents/Resins

Quick Information

EINECS 201-297-1
Molecular Weight 100.12 g/mol

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