Poly(ethyl methacrylate) explained

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.^[1] It may be vulcanized using lead oxide as a catalyst^[2] and it can be softened using ethanol.

It is used as an impression material of ear canals for the fabrication of hearing aids.^{[3] [4]} 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 ^[5] and for fabricating artificial nails ^[6]

Notes and References

1. Book: Anusavice, Kenneth J. . Phillips' Science of Dental Materials 11th edition e-book . 2003 . Elsevier/Saunders . 9781437724189 . 934359978.
2. Web site: Document Display (PURL) NSCEP US EPA. nepis.epa.gov . 6–80. 2019-04-27.
3. Book: Krumenacker, Suzanne. Hearing aid dispensing training manual. 9781635501322. Second. 138. San Diego, CA. 1089445836. 2019-03-13.
4. Book: Audiology. Treatment. 2000. Thieme. Valente, Michael., Hosford-Dunn, Holly., Roeser, Ross J.. 0865778590. 79. New York. 42726605.
5. Book: Leiggi, Patrick May, Peter. Vertebrate paleontological techniques. 2005. Cambridge University Press. 0521459001. 474958103.
6. Book: 2010-10-15. Baran. Robert. Maibach. Howard. Textbook of Cosmetic Dermatology. CRC Press . 10.3109/9781841847641. 9780429110962.