Name: Methyl methacrylate (referred to as MMA)

Other name: α-methyl methacrylate; methyl methyl ester

Chemical formula: C5H8O2

Molecular weight: 100.12

CAS : 80-62-6

EINECS : 201-297-1

Melting point: -48 ℃

Boiling point: 100-101 ℃

Water solubility: soluble in ethanol, ether, acetone, etc.

Density: 0.944 g / cm3

Outlook: colorless liquid

Flash point: 10 ℃

Application: manufacturing plexiglass

Safety description: volatile, flammable

Appearance and properties: colorless and volatile liquid, with strong spicy taste and flammable. Solubility: soluble in various organic solvents such as ethanol, ether, acetone, etc., slightly soluble in ethylene glycol and water

Flammable, stability is stable, easy to polymerize in the presence of light, heat, ionizing radiation and catalyst.

Explosive when mixed with air, flammable when exposed to open flames, high temperatures, and oxidants; combustion produces irritating smoke, chemical reactions with oxidants and acids, not stored for a long time to prevent polymerization.

Usage

Polymerized monomers and additives

Methyl methacrylate is a polymethyl methacrylate (plexiglass) monomer. It is also copolymerized with other vinyl monomers to obtain products with different properties. It is used in the manufacture of plexiglass, coatings, lubricant additives, plastics, and adhesives. , Resin, wood wetting agent, motor coil penetrating agent, ion exchange resin, paper polish, textile printing and dyeing auxiliary agent, leather treatment agent, printing and dyeing auxiliary agent and insulation pouring material.

Preparation of other acrylates (transesterification method)

The main methods for preparing acrylic esters are: direct alkyd esterification, acid chloride esterification, and transesterification. By reacting methyl methacrylate with different alcohols, corresponding acrylates and methanol can be obtained. The transesterification method can be dimethylaminoethyl methacrylate (DMAEMA), butyl methacrylate (BMA), 2-ethylhexyl methacrylate, and the like.