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Poly is a hydrophobic synthetic acrylate polymer.PMA, though softer than polymethyl methacrylate , is tough, leathery, and flexible.
It has a low glass-transition temperature about 10 °C.
High-energy radiation leads to cross linking in PMA. However in polymethyl methacrylate , a compound similar to PMA, degradation occurs instead.
It is soluble in dimethyl sulfoxide.PMA is water-sensitive and unlike PMMA, is not stable against alkalies.
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