polymethyl methacrylate

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polymethyl methacrylate

/poly·meth·yl meth·ac·ryl·ate/ (pol″e-meth´il meth-ak´ril-āt) a thermoplastic acrylic resin formed by polymerization of methyl methacrylate. Abbreviated PMMA. Written also polymethylmethacrylate.


, polymethyl methacrylate (pol′ē-meth′ĭl-meth″ak′rĭ-lāt″) [ poly- + methyl + methacryl(ic acid) + -ate],


C5H8O2, a transparent, colorless acrylic polymer. It is used in optics and ophthalmology to make intraocular lenses for cataract surgery, in dentistry as a denture base material, in cosmetic surgery as a soft-tissue filler, and in the fabrication of dialysis membranes with high biocompatibility.

polymethyl methacrylate (PMMA)

Polymerized methyl methacrylate forming a light transparent thermoplastic material used in the manufacture of some spectacle lenses and formerly hard contact lenses. See modulus of elasticity; plastic spectacle frame.
References in periodicals archive ?
The Commission uncovered evidence that the firms' representatives had met in a Dublin hotel room in October 1999 where they fixed the European price level for acrylic glass moulding compounds.
Although the color in his acrylic glass objects and installations remains captured in the surface, it still seems disembodied.
Panes of black acrylic glass are set up on two easels.
As a contrast, she also has a sculpture called Contact made of acrylic glass sticks hanging from the ceiling, with the pieces all tangled together and glowing in darkness.
Sales of other acrylic glass styles -- Old Fashion, goblets and champagne glasses -- also increased during the 12-month period ending April 2014, reports the Port Washington, N.
Several design elements of the croc enclosure are actually safety components, with hydraulic gates installed at key points, and the acrylic glass said to be strong enough to withstand the thrashing of a 750kg heavy reptile.
At the Frankfurt Motor Show earlier this year, JLR showed off the C-X17 concept with the InControl telematics system developed in partnership with Bosch which utilized interconnected touchscreens running the length of the car, layered with acrylic glass and a heads-up windscreen display for the driver.
There's much commercial appeal to the resin bangles, vari-sized rigid cuffs of glossy acrylic glass set with pave crystals that the wearer can stack or wear individually.
The people, especially children and women, expressed great interest in the newly inducted captives, including the pair of white lion which had been imported from South Africa and kept in an especially build acrylic glass enclosure for providing a new and unique experience of watching 'king of jungle' to the visitors.
It is made from a special acrylic glass, reports the Telegraph.
For the meeting room, it used alabaster glass, which looks like acrylic glass, but is more environmentally friendly, as generates less wastage.
Billingham-based acrylics manufacturer Lucite is among five firms to be fined by the European Commission for running an illegal price-fixing cartel in the acrylic glass market.