Monday, July 11, 2011

Poly(methyl methacrylate) (PMMA)

There’s a bunch of things I’ve been meaning to post that are made of acrylic and an introduction is in order.  Check out everything with an acrylic label.

Poly(methyl methacrylate), abbreviated PMMA, has the chemical formula (C5O2H8)n and CAS Registry Number 9011-14-7.

PMMA repeating unitPoly(methyl methacrylate) (PMMA)

PMMA is a transparent thermoplastic, often used as a light or shatter-resistant alternative to glass.  A thermoplastic is a polymer that softens and turns to liquid when heated and conversely solidifies to a glass-like state when cooled.  PMMA has a melting point of approximately 160 °C (320 °F). It is sometimes called acrylic glass or simply acrylic.

Chemically, PMMA is the synthetic polymer of methyl methacrylate. The material was developed in 1928 in various laboratories and was first brought to market in 1933 by Rohm and Haas under the trademark Plexiglas.  Lucite is the brand name of the polymer developed by the DuPont Chemical Company and only items made by DuPont can be referred to as Lucite.  The development of special light-resistant dyes in 1946 allowed color to be incorporated into acrylic without detrimental fading.

In addition to Plexiglas and Lucite, PMMA is sold by numerous other trade names such as Limacryl, R-Cast, Perspex, Plazcryl, Acrylex, Acrylite, Acrylplast, Altuglas, Polycast and Oroglass and is commonly called acrylic glass or simply acrylic.  A more complete list of synonyms for acrylic can be found here.

Acrylic shapesAcrylics are available in a vast selection of different forms and colors, including sheet, rod, tube, and block.  Image source:  Interstate Plastics.

PMMA is an economical alternative to polycarbonate (PC) when extreme strength is not necessary. Additionally, PMMA does not contain the potentially harmful bisphenol-A (BPA) subunits found in polycarbonate. It is often preferred because of its moderate properties, easy handling and processing, and low cost.  However, the material behaves in a brittle manner when loaded, especially under an impact force, and is more prone to scratching than glass.Resin code 7

For the purposes of recycling, PMMA is in group 7.  For more information about  plastics recycling codes, click here for a pdf published by the American Chemistry Council.


Poly(methyl methacrylate). Retrieved June 30, 2011 from http://en.wikipedia.org/wiki/Poly(methyl_methacrylate)

Rohm and Haas Innovation - Plexiglas Triumphs. Retrieved June 30, 2011 from http://www.rohmhaas.com/history/ourstory/innovation_plexiglastriumphs.htm

Vintage Lucite. Retrieved June 30, 2011 from http://www.ehow.com/about_6634319_vintage-lucite_.html

Share |


Unknown said...

swarovski jewelry
oakley sunglasses wholesale
celine outlet
coach handbags
oakley sunglasses
cheap replica watches
coach outlet online
louis vuitton bags
designer handbags,handbags outlet,cheap handbags,purses and handbags,wholesale handbags,designer bags,bags outlet,handbags wholesale,cheap purses,discount handbags,handbags sale,wholesale purses,handbags and purses,designer purses
rolex outlet
tiffany jewelry
ralph lauren uk
discount oakley sunglasses
mulberry outlet
ralph lauren outlet
ralph lauren outlet
oakley sunglasses uk
swarovski crystal
oakley canada
tory burch outlet online
fitflops uk
tiffany and co jewelry
tory burch outlet
coach outlet
celine outlet online
coach outlet
rolex watches
true religion jeans
kate spade uk
ferragamo outlet

Unknown said...

fred perry polo
air max 90
seattle seahawks jersey
cardinals jersey
new york knicks jerseys
vans outlet
buffalo bills jersey
nike foamposite
salomon shoes sale
air max 2014
new england patriots jersey
valentino shoes
atlanta falcons jersey
dallas cowboys jerseys
oklahoma city thunder
san diego chargers jerseys
boston celtics jerseys
chicago blackhawks
jacksonville jaguars jersey
new orleans saints jersey
giuseppe zanotti shoes
green bay packers jerseys
chicago bulls
abercrombie outlet
packers jerseys
new york giants jersey
detroit lions jerseys
supra shoes sale
bears jerseys
giuseppe zanotti outlet
jets jersey
buffalo bills jerseys
tods outlet
detroit lions jersey
baltimore ravens jerseys

mmjiaxin said...

cheap nfl jerseys
michael kors outlet online
tiffany,tiffany and co,tiffany and co jewelry,tiffany necklace,tiffany bracelet,tiffany ring,tiffany earrings
coach outlet online
michael kors factory outlet
toms outlet
air jordan retro
tiffany & co
michael kors handbags
kobe shoes
chrome hearts online
kobe shoes,kobe zoom,nike zoom kobe
nike huarache
tiffany and co
kobe sneakers
cheap air jordan
tiffany and co outlet
michael kors outlet store online
michael kors handbags outlet
ralph lauren online
kobe basketball shoes
cheap real jordans
michael kors outlet
michael kors handbags
cheap oakley sunglasses
toms outlet store
cheap authentic jordans
Cheap Jerseys Online
basketball shoes,cheap basketball shoes,nike basketball shoes,cheap jordan basketball shoes
kobe byrant shoes
jordan shoes

Unknown said...

michael kors handbags
ray ban sunglasses
dallas cowboys jersey
toms shoes
michael kors handbags
under armour outlet
indianapolis colts jerseys
jimmy choo
valentino shoes
fitflops shoes

Post a Comment

Related Posts with Thumbnails