Metylemetakrylaatti

Metylemetakrylaatti, often abbreviated as MMA, is an organic compound with the formula CH2=C(CH3)COOCH3. It is a volatile, colorless liquid with a characteristic acrid odor. MMA is a monomer, meaning it is a small molecule that can bond to other similar molecules to form a larger polymer. The primary use of methyl methacrylate is in the production of polymethyl methacrylate (PMMA), a transparent thermoplastic commonly known as acrylic glass or Plexiglas.

PMMA possesses several desirable properties, including high transparency, excellent weather resistance, and good impact strength, though it is more brittle than some other plastics. These qualities make it suitable for a wide range of applications such as windows, lenses, signage, and protective barriers. MMA is also used as a comonomer in the production of various copolymers, which modify the properties of the resulting polymers for specific industrial uses. It can be found in paints, coatings, adhesives, and even in some dental and medical applications, such as bone cement and dentures. The polymerization of methyl methacrylate can be initiated by free radicals or other mechanisms. Due to its flammability and potential for skin and respiratory irritation, appropriate safety precautions are necessary when handling this chemical.