A Raw Material for the Manufacture of other Methacrylates is Methyl Methacrylate
Methyl methacrylate (MMA) is a
polymerized form of resins or organic materials that is mostly used to make
polymethyl methacrylate acrylic plastics (PMMA) and methyl
methacrylate-butadiene-styrene (MBS). It was also employed as a PVC modifier
later on. MMA is a colourless, volatile, combustible liquid that is soluble in
warm water. It has an unpleasant odour.
Acrylics are classified into two
types based on the original monomer from which the polymer was formed:
acrylates and methacrylates. A methyl group is connected to the carbon-carbon
chain of a methacrylate polymer molecule in Methyl
Methacrylate, whereas a hydrogen atom is located in the carbon-carbon
chain of an acrylate.
Saponification, or alkali
breakdown, is resistant to Methyl
Methacrylate copolymerization, such as poly(methyl methacrylate). As a
result, it is a highly attractive polymer for coating zinc substrates or other
surfaces that may be exposed to alkali conditions. To create a viable paint
from MMA, the copolymer must be modified in some way. It should be noted that
the elongation of pure methyl methacrylate in both solvent-borne and aqueous
coatings is quite low. As a result, in waterborne formulations of methyl
methacrylate emulsion polymers, substantial amounts of plasticizers, coalescing
solvents, or both are required to form films at ambient temperature.
Acrylic emulsion polymers, on the
other hand, must be copolymerized with acrylate monomers in order to be used in
paint compositions.
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