Difference between revisions of "Polymethyl methacrylate"

Latest revision as of 12:38, 18 September 2023

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.

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]

Physical and Chemical 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 C(softens)
Density	1.16-1.20 g/ml
Refractive Index	1.482-1.521

Comparisons

General Characteristics of Polymers

Physical Properties for Selected Thermoplastic Resins

Resources and Citations

Omnexus: Guide on PMMA
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: http://en.wikipedia.org/wiki/Plexiglas (Accessed Nov. 9, 2005)

@@ Line 1: / Line 1: @@
 == 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 Plexiglas], [http://cameo.mfa.org/materials/fullrecord.asp?name=Perspex Perspex], and [http://cameo.mfa.org/materials/fullrecord.asp?name=Lucite Lucite]. Polymethyl methacrylate has good optical properties and is often used as a replacement for glass. It is resistant to oxidation and photodegradation.
+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|Plexiglas®]], [[Perspex|Perspex]], and [[Lucite|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 resin acrylic resin].
+See also [[acrylic%20resin|acrylic resin]].
+[[[SliderGallery rightalign|aaiPMMA.jpg~FTIR]]]
 == Synonyms and Related Terms ==
-PMMA; acrylic resin;  polymethylmethacrylate; polimetilmetacrilato (Esp.); poli(metacrilato de metilo) (Esp.); polymthylmthacrylate (Fr.); polimetilmetacrilato (It.); polimetilmetacrilato (Port.)
+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]
-[[[SliderGallery rightalign|aaiPMMA.jpg~FTIR]]]
+Examples: Lucite® [Lucite]; Perspex® [Lucite); Plexiglas® [Arkema]; Altuglas® [Arkema]; Acrylite® [Piedmont Plastics]
-== Other Properties ==
+== Physical and Chemical 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
+* 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
 {| class="wikitable"
@@ Line 26: / Line 26: @@
 |-
 ! scope="row"| Melting Point
-| 105-125 (softens)
+| 105-125 C(softens)
 |-
 ! scope="row"| Density
-| 1.16-1.20
+| 1.16-1.20 g/ml
 |-
 ! scope="row"| Refractive Index
@@ Line 41: / Line 41: @@
 [[media:download_file_355.pdf|Physical Properties for Selected Thermoplastic Resins]]
+== Resources and Citations ==
+* Omnexus: [https://omnexus.specialchem.com/selection-guide/polymethyl-methacrylate-pmma-acrylic-plastic Guide on PMMA]
-== 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
-* R. J. Gettens, G.L. Stout, R. J. Gettens, G.L. Stout, ''Painting Materials, A Short Encyclopaedia'', Dover Publications, New York, 1966
+* Theodore J. Reinhart, 'Glossary of Terms', ''Engineered Plastics'', ASM International, 1988
+* Pam Hatchfield, ''Pollutants in the Museum Environment'', Archetype Press, London, 2002
-* G.S.Brady, G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971
+* Wikipedia: http://en.wikipedia.org/wiki/Plexiglas (Accessed Nov. 9, 2005)
-* Theodore J. Reinhart, Theodore J. Reinhart, 'Glossary of Terms', ''Engineered Plastics'', ASM International, 1988
-* Pam Hatchfield, 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)
 [[Category:Materials database]]