Polymethyl acrylate
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| Names | |
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| Other names
Polymethylacrylate
Polymethyl acrylate |
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| Identifiers | |
| Abbreviations | PMA |
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| ChemSpider |
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| Properties | |
| (C4H6O2)n | |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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.
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