metakrüülhappel

Metakrüülhape, also known as 2-methylpropenoic acid, is an organic compound with the chemical formula C4H6O2. It is a carboxylic acid and a derivative of acrylic acid, with a methyl group attached to the carbon atom adjacent to the carboxyl group. Metakrüülhape is a colorless, volatile liquid with a pungent odor. It is soluble in water and most organic solvents.

Industrially, metakrüülhape is primarily produced by the oxidation of isobutylene or tert-butanol. It is a key monomer in the production of polymethacrylates, a class of polymers widely used in various applications. The most well-known polymethacrylate is polymethyl methacrylate (PMMA), often referred to by trade names like Plexiglas or Lucite. PMMA is a transparent thermoplastic known for its clarity, rigidity, and impact resistance, making it a substitute for glass in applications such as windows, lenses, and signage.

Metakrüülhape itself is rarely used in its pure form due to its tendency to polymerize. It is typically handled and transported in stabilized forms to prevent premature polymerization. The reactivity of the double bond in metakrüülhape allows for its polymerization, forming long chains of polymethacrylic acid or copolymers with other monomers. These polymers find use in paints, coatings, adhesives, and as thickening agents. Safety precautions are necessary when handling metakrüülhape due to its corrosive nature and potential for skin and eye irritation.