Difference between revisions of "Polymethyl methacrylate"
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== Description == | == Description == | ||
| − | Hard, glasslike, thermoplastic resin with a softening temperature from 105-125 C. Polymethyl methacrylate was the first commercially sold in 1933 as glass substitutes, such as [http://cameo.mfa.org/materials/fullrecord.asp?name=Plexiglas | + | Hard, glasslike, thermoplastic resin with a softening temperature from 105-125 C. Polymethyl methacrylate was the first commercially sold in 1933 as glass substitutes, such as [http://cameo.mfa.org/materials/fullrecord.asp?name=Plexiglas%C2%AE Plexiglas®], [http://cameo.mfa.org/materials/fullrecord.asp?name=Perspex Perspex], and [http://cameo.mfa.org/materials/fullrecord.asp?name=Lucite%C2%AE Lucite®]. Polymethyl methacrylate has good optical properties and is often used as a replacement for glass. It is resistant to oxidation and photodegradation. |
| − | See also [http://cameo.mfa.org/materials/fullrecord.asp?name=acrylic | + | See also [http://cameo.mfa.org/materials/fullrecord.asp?name=acrylic%20resin acrylic resin]. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | PMMA; acrylic resin; polymethylmethacrylate; polimetilmetacrilato (Esp.); poli(metacrilato de metilo) (Esp.); | + | PMMA; acrylic resin; polymethylmethacrylate; polimetilmetacrilato (Esp.); poli(metacrilato de metilo) (Esp.); polyméthylméthacrylate (Fr.); polimetilmetacrilato (It.); polimetilmetacrilato (Port.) |
| − | Examples: | + | Examples: Lucite® [Lucite]; Perspex® [Lucite); Plexiglas® [Arkema]; Altuglas® [Arkema]; Acrylite® [Piedmont Plastics] |
[[[SliderGallery rightalign|aaiPMMA.jpg~FTIR]]] | [[[SliderGallery rightalign|aaiPMMA.jpg~FTIR]]] | ||
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== Authority == | == Authority == | ||
| − | * | + | * R. J. Gettens, G.L. Stout, ''Painting Materials, A Short Encyclopaedia'', Dover Publications, New York, 1966 |
| − | * | + | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 |
| − | * | + | * Theodore J. Reinhart, 'Glossary of Terms', ''Engineered Plastics'', ASM International, 1988 |
| − | * | + | * Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002 |
* Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Plexiglas (Accessed Nov. 9, 2005) | * Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Plexiglas (Accessed Nov. 9, 2005) | ||
Revision as of 06:53, 24 July 2013
Description
Hard, glasslike, thermoplastic resin with a softening temperature from 105-125 C. Polymethyl methacrylate was the first commercially sold in 1933 as glass substitutes, such as Plexiglas®, Perspex, and Lucite®. Polymethyl methacrylate has good optical properties and is often used as a replacement for glass. It is resistant to oxidation and photodegradation.
See also acrylic resin.
Synonyms and Related Terms
PMMA; acrylic resin; polymethylmethacrylate; polimetilmetacrilato (Esp.); poli(metacrilato de metilo) (Esp.); polyméthylméthacrylate (Fr.); polimetilmetacrilato (It.); polimetilmetacrilato (Port.)
Examples: Lucite® [Lucite]; Perspex® [Lucite); Plexiglas® [Arkema]; Altuglas® [Arkema]; Acrylite® [Piedmont Plastics]
Other Properties
Burns with a shiny flame and blue center; smells sweet and fruity. Soluble in esters, ketones, aromatic and chlorinated hydrocarbons. Insoluble in water, alcohols, petroleum hydrocarbons. Brinell hardness=18-20
| Composition | (C5O2H8)n |
|---|---|
| CAS | 9011-14-7 |
| Melting Point | 105-125 (softens) |
| Density | 1.16-1.20 |
| Refractive Index | 1.482-1.521 |
Comparisons
General Characteristics of Polymers
Physical Properties for Selected Thermoplastic Resins
Authority
- R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971
- Theodore J. Reinhart, 'Glossary of Terms', Engineered Plastics, ASM International, 1988
- Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Plexiglas (Accessed Nov. 9, 2005)