Loading AI tools
Chemical compound From Wikipedia, the free encyclopedia
Poly(methyl acrylate) (PMA) is a family of organic polymers with the formula (CH2CHCO2CH3)n. It is a synthetic acrylate polymer derived from methyl acrylate monomer. The polymers are colorless. This homopolymer is far less important than copolymers derived from methyl acrylate and other monomers. PMA is softer than polymethyl methacrylate (PMMA),[1] It is tough, leathery, and flexible.[2]
.svg) | |
| Names | |
|---|---|
| Other names
Polymethylacrylate Polymethyl acrylate | |
| Identifiers | |
| Abbreviations | PMA |
| ChEBI | |
| ChemSpider |
|
CompTox Dashboard (EPA) |
|
| Properties | |
| (C4H6O2)n | |
| Appearance | colorless solid |
| Density | 1.20 g/cm3 |
Refractive index (nD) |
1.479 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Far more important than PMA are copolymers produced from methyl acrylate and one or more of the following comonomers methyl methacrylate, styrene, acrylonitrile, vinyl acetate, vinyl chloride, vinylidene chloride, and butadiene.[3]
It has a low glass-transition temperature about 10 °C (12.5 °C in case of PMA38).[4] It is soluble in dimethyl sulfoxide (DMSO).[4] PMA is water-sensitive and unlike PMMA, is not stable against alkalies.[2]
High-energy radiation leads to cross linking in PMA. However in polymethyl methacrylate (PMMA), a compound similar to PMA, degradation occurs instead.[1]
Also used in leather finishing and textiles.[2]
Derivatives of this polymer are commonly used in orally administerd pharmaceutical formulations to target specific regions of the gastrointestinal tract.[5]
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
