Physical Properties
| Property | Methyl Methacrylate (MMA) | Methyl Acrylate (MA) |
|---|---|---|
| Density (20℃) | 0.944 g/cm³ | 0.952 g/cm³ |
| Boiling Point | 100.3℃ | 80.3℃ |
| Melting Point | -48.2℃ | -76.5℃ |
| Refractive Index (20℃) | 1.414 | 1.401 |
Chemical Properties
| Property | Methyl Methacrylate (MMA) | Methyl Acrylate (MA) |
|---|---|---|
| Chemical Structure Feature | Contains an additional methyl group on the α-carbon | No methyl group on the α-carbon |
| Polymerization Activity | Moderate; prone to free radical polymerization | High; faster free radical polymerization than MMA |
| Chemical Resistance | Resistant to short-term soaking in alcohol, gasoline | Easily eroded by organic solvents (alcohol, acetone) |
| Hydrolytic Stability | Relatively stable; slow hydrolysis in neutral conditions | Poor; easy to hydrolyze in acidic/alkaline environments |
| Reactivity with Copolymers | Copolymerizes with styrene, acrylonitrile (improves hardness) | Copolymerizes with vinyl acetate, acrylic acid (improves flexibility) |
| Flammability | Flammable; flash point 10℃ | Highly flammable; flash point -3℃ |
What is methyl methacrylate MMA used for?
Methyl Methacrylate (MMA) is not only an organic chemical raw material, but also can be directly used as a chemical product.
- As an organic chemical raw material, MMA is mainly used in the production of plexiglass (polymethacrylate,PM-MA), also used in the production of ACR, the auxiliary agent of POLYvinyl chloride, and the production of acrylic fiber as the second monomer. In addition, it is widely used in adhesive, coating, resin, textile, papermaking and other industries.
- As a kind of chemical products, can be directly used in leather, ion exchange resin, paper, polish, textile auxiliaries, leather treatment agent,lubricating oil additive, crude oil, wood and soft wood infiltration agents, motor coil soaking agent, insulating pouring material and plastic type emulsion of plasticizer, floor polishing, unsaturated resins, senior methacrylate and many other fields.
What is methyl acrylate(MA) used for?
Methyl acrylate is the ester of acrylic acid and methanol. It is a raw material for applications including acrylic fibers, molding resins, adhesives, coatings, and emulsions.
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