Poly(methyl acrylate)

Poly(methyl acrylate) (PMA) is a hydrophobic synthetic acrylate polymer.PMA, though softer than polymethyl methacrylate (PMMA), is tough, leathery, and flexible. Poly(methyl acrylate) (PMA) is a hydrophobic synthetic acrylate polymer.PMA, though softer than polymethyl methacrylate (PMMA), is tough, leathery, and flexible. It has a low glass-transition temperature about 10°C (12.5°C in case of PMA38). High-energy radiation leads to cross linking in PMA. However in polymethyl methacrylate (PMMA), a compound similar to PMA, degradation occurs instead. It is soluble in dimethyl sulfoxide (DMSO).PMA is water-sensitive and unlike PMMA, is not stable against alkalies. It is used as macroinitiator to initiate the copolymerisation of HEMA and DMAEMA.Also used in leather finishing and textiles.