Polycarbonate
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Polycarbonates are a group of thermoplastic polymers containing carbonate groups in their chemical structures. Polycarbonates used in engineering are strong, tough materials, and some grades are optic
A bottle made from polycarbonate
Polycarbonate sheeting in a greenhouse
Lockheed Martin F-22 cockpit canopy
Laboratory safety goggles
Poly(methyl methacrylate)
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Poly is a synthetic polymer derived from methyl methacrylate. It is a transparent thermoplastic used as an engineering plastic. PMMA is also known as acrylic and acrylic glass and by the trade names a
Polycarbonate
…is applied to polycarbonate eyewear lenses and polycarbonate exterior automotive components. The characteristics of polycarbonate compare to those of polymethyl methacrylate (PMMA, acrylic), but polycarbonate is tougher and will hold up longer to extreme temperature. Thermally processed material is usually totally amorphous…
Lichtenberg figure: high-voltage dielectric breakdown in an acrylic polymer block
Pieces of Plexiglas taken from the windscreen of a German plane shot down during World War II
Cast Acrylic
Close-up of pressure sphere of the bathyscaphe Trieste, with a single conical window of PMMA set into sphere hull. The very small black circle (smaller than the man's head) is the inner side of the plastic "window", only a few inches in diameter. The larger circular clear black area represents the larger outer side of the thick one-piece plastic cone "window".