Polymethacrylates (PMA)
| Formula: | (C₅H₈O₂)ₙ |
| CAS Number: | 9011-14-7 (general) |
| EC Number (EINECS): | 208-750-2 (varies by polymer grade) |
| HS Code: | 39069090 |
| UN Number: | Not classified as hazardous for transport |
| IUPAC Name: | Poly(2-methylprop-2-enoate) |
| Also Known As: | PMA; Poly(methyl methacrylate-co-methacrylic acid); Methacrylate Polymers |
| Molecular Weight, g/mol: | Variable (depends on grade & application) |
Typical Specifications
| Appearance: | White/off-white powder or granules; sometimes liquid dispersion |
| Odor: | Odorless |
| Density, g/cm³ (at 20°C): | 1.15–1.20 |
| Solubility: | Insoluble in water; soluble in esters, ketones, and chlorinated hydrocarbons |
| Purity, %: | ≥99 (monomer conversion) |
| Grades Available: | Industrial, Technical, Coating Grade, Specialty Grades |
| Packaging: | 25kg bags, 500kg jumbo bags, liquid drums/IBCs (for emulsions) |
Applications / Uses
Primary Applications
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Binder in paints, inks, and coatings
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Modifier for adhesives and sealants
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Component in plastics and polymer blends
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Rheology modifier in lubricants and fuels
Secondary Applications
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Used in construction chemicals (concrete admixtures, waterproofing)
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Ingredient in cosmetic formulations (film-forming agents, hair fixatives)
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Automotive and industrial coatings
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Leather and textile finishing
End Industries Served: Paints & Coatings, Adhesives, Plastics, Construction, Automotive, Cosmetics, Textiles, Lubricants
Safety & Handling Information
Hazard Class (GHS): Generally considered non-hazardous; dust may cause irritation
Hazard Statements (H-Codes):
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H319: Causes serious eye irritation (dust)
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H335: May cause respiratory irritation (dust)
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H402: Harmful to aquatic life (for some modified PMA grades)
Precautionary Statements (P-Codes):
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P280: Wear protective gloves/eye protection
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P261: Avoid breathing dust/fumes
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P273: Avoid release to the environment
Storage Conditions
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Store in a dry, cool, ventilated area
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Avoid heat, sparks, or open flames
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Protect from moisture and contamination
Transport Information
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ADR/RID: Not classified as dangerous goods
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IMDG: Not classified as dangerous goods
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IATA: Not classified as dangerous goods