Methyl methacrylate
CAS number:80-62-6
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Molecular Formula:
C5H8O2 / CH2C(CH3)COOCH3
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Molecular Weight:
100.12 g/mol
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Brief Introduction:
Methyl methacrylate (MMA) is a clear, colorless liquid that serves as a key monomer in the production of plastics and resins. It is slightly soluble in water, heavier than air, and its vapors can irritate the eyes and respiratory system. The chemical is highly reactive, requiring inhibitors like hydroquinone to prevent polymerization during transport or storage, as exothermic polymerization can occur if MMA is heated or exposed to strong acids or bases, potentially causing container rupture. MMA is primarily used to manufacture polymethyl methacrylate (PMMA), a versatile plastic used in industries such as transportation, aviation, and healthcare. However, the polymerization of MMA is associated with significant safety hazards, including thermal runaway, particularly in bulk polymerization processes. The presence and concentration of initiators such as AIBN or BPO can influence the reaction's thermal behavior, and improper handling can lead to dangerous accidents. Additionally, MMA exposure can cause skin, eye, and respiratory irritation, and chronic exposure may lead to neurological effects and allergic responses.
Acrylate
MMA is part of the acrylate family, which includes other methacrylate esters and acrylate monomers used in the production of various plastics and coatings.
Monomers
MMA is a key monomer used in the production of polymers, especially polymethyl methacrylate (PMMA), which is widely used in applications like lenses, signage, and automotive parts.
Alkene (Olefin)
MMA contains a carbon-carbon double bond (C=C), making it an alkene, a type of unsaturated hydrocarbon.
Esters
As an ester derivative of methacrylic acid, MMA is classified under ester compounds, which are often used in industrial applications like coatings, adhesives, and sealants.
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