Poly(ethyl methacrylate)
Other names
Ethyl 2-methyl-2-propenoate homopolymer[1]
2-Propenoic acid, ethyl ester, homopolymer[2]
Abbreviations PEMA
  • none
ECHA InfoCard 100.131.117 Edit this at Wikidata
Appearance powder [5]
insoluble in water [6]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Poly(ethyl methacrylate) (PEMA) is a hydrophobic synthetic acrylate polymer. It has properties similar to the more common PMMA, however it produces less heat during polymerization, has a lower modulus of elasticity and has an overall softer texture.[7] It may be vulcanized using lead oxide as a catalyst[8] and it can be softened using ethanol.

It is used as an impression material of ear canals for the fabrication of hearing aids.[9][10] It is also used in dentistry as a chair-side denture reline material for partial and complete dentures as well as a tissue conditioner with implant-supported dentures. It is used as a component of fossil coating and preservation [11] and for fabricating artificial nails [12]


  1. ^ Chambers, Michael. "ChemIDplus - 9003-42-3 - Poly(ethylmethacrylate) - Similar structures search, synonyms, formulas, resource links, and other chemical information". chem.nlm.nih.gov. Retrieved 2019-05-01.
  2. ^ "Poly(ethyl methacrylate) - Alfa Chemistry". www.alfa-chemistry.com. Retrieved 2019-05-01.
  3. ^ "Common Chemistry - Substance Details - 9003-42-3 : 2-Propenoic acid, 2-methyl-, ethyl ester, homopolymer". www.commonchemistry.org. Retrieved 2019-05-01.
  4. ^ "poly(ethyl methacrylate) macromolecule (CHEBI:53221)". www.ebi.ac.uk. Retrieved 2019-05-01.
  5. ^ "POLY(ETHYL METHACRYLATE)". www.chemicalbook.com. Retrieved 2019-05-01.
  6. ^ "CAS DataBase List POLY(ETHYL METHACRYLATE)". www.chemicalbook.com. Retrieved 2019-11-20.
  7. ^ Anusavice, Kenneth J. (2003). Phillips' Science of Dental Materials 11th edition e-book. Elsevier/Saunders. ISBN 9781437724189. OCLC 934359978.
  8. ^ "Document Display (PURL) | NSCEP | US EPA". nepis.epa.gov. pp. 6–80. Retrieved 2019-04-27.
  9. ^ Krumenacker, Suzanne (2019-03-13). Hearing aid dispensing training manual (Second ed.). San Diego, CA. p. 138. ISBN 9781635501322. OCLC 1089445836.((cite book)): CS1 maint: location missing publisher (link)
  10. ^ Audiology. Treatment. Valente, Michael., Hosford-Dunn, Holly., Roeser, Ross J. New York: Thieme. 2000. p. 79. ISBN 0865778590. OCLC 42726605.((cite book)): CS1 maint: others (link)
  11. ^ Leiggi, Patrick May, Peter (2005). Vertebrate paleontological techniques. Cambridge University Press. ISBN 0521459001. OCLC 474958103.((cite book)): CS1 maint: multiple names: authors list (link)
  12. ^ Baran, Robert; Maibach, Howard, eds. (2010-10-15). Textbook of Cosmetic Dermatology. doi:10.3109/9781841847641. ISBN 9780429110962.