Methyl Methacrylate
CAS Number: 80-62-6
Methyl methacrylate (MMA) is the primary monomer for poly(methyl methacrylate) (PMMA) and a key hard monomer in acrylic coatings, adhesives, and emulsion polymers. Its homopolymer exhibits exceptional optical clarity, UV stability, and weatherability. MMA is used in both bulk cast sheet production and emulsion/solution copolymerization.
Technical Specifications
| appearance | Colorless transparent liquid |
| purity (%) | ≥99.8 |
| water content (%) | ≤0.05 |
| acidity (as MAA, %) | ≤0.003 |
| inhibitor (MEHQ, ppm) | 15 ± 5 |
Applications
- PMMA sheet, rod, and optical component manufacturing
- Hard segment in waterborne and solventborne acrylic coatings
- Acrylic dental and bone cement formulations
- Impact modifier and surface coating for engineering plastics
- Emulsion polymer binders for paper and leather finishing
Key Features
- Highest optical clarity among common acrylic monomers for optical-grade applications
- Excellent UV resistance imparts long-term weatherability to copolymer films
- Hard monomer that raises Tg, balances with soft monomers for formulation flexibility
- Low inhibitor polymerization grade available for UV-curable and specialty applications
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CAS Number
80-62-6
Category
Polymer Synthesis ChemicalsAvailability
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