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  2. Poly(methyl methacrylate) - Wikipedia

    en.wikipedia.org/wiki/Poly(methyl_methacrylate)

    Poly(methyl methacrylate) (PMMA) is a synthetic polymer derived from methyl methacrylate. It is a transparent thermoplastic, used as an engineering plastic. PMMA is also known as acrylic, acrylic glass, as well as by the trade names and brands Crylux, Hesalite, Plexiglas, Acrylite, Lucite, and Perspex, among several others .

  3. Poly(methyl acrylate) - Wikipedia

    en.wikipedia.org/wiki/Poly(methyl_acrylate)

    Poly(methyl acrylate) (PMA) is a family of organic polymers with the formula (CH 2 CHCO 2 CH 3) n.It is a synthetic acrylate polymer derived from methyl acrylate monomer. The polymers are colorless.

  4. Plastic optical fiber - Wikipedia

    en.wikipedia.org/wiki/Plastic_optical_fiber

    Traditionally, PMMA (acrylic) comprises the core (96% of the cross section in a fiber 1mm in diameter), and fluorinated polymers are the cladding material. Since the late 1990s much higher performance graded-index (GI-POF) fiber based on amorphous fluoropolymer (poly(perfluoro-butenylvinyl ether), CYTOP [1]) has begun to appear in the marketplace.

  5. Cast acrylic - Wikipedia

    en.wikipedia.org/wiki/Cast_acrylic

    It has better thermal stability, higher resistance to crazing when exposed to solvents, wider thermoforming range than extruded acrylic. Cast acrylic has a better ability to be reworked hot and it is known for its superior surface finish and optical properties.

  6. Here are some goods in the crosshairs of Trump's tariffs on ...

    www.aol.com/goods-crosshairs-trumps-tariffs...

    The U.S. also imported more than $32 billion in “toys, games and sporting goods” from China last year, data shows. And Americans import billions of dollars a year in clothing from China.

  7. If Grocery Stores Want to Turn a Profit, They Should Be ... - AOL

    www.aol.com/grocery-stores-want-turn-profit...

    To come to the conclusion that beer drinkers make great grocery store customers, the researchers used nationally representative data at the store and the household levels.

  8. US probes UnitedHealth's Medicare billing practices, WSJ reports

    www.aol.com/news/doj-probes-unitedhealths...

    The U.S. Justice Department has launched a probe into UnitedHealth's Medicare billing practices in recent months, the Wall Street Journal reported on Friday, sending the healthcare conglomerate's ...

  9. Cell casting - Wikipedia

    en.wikipedia.org/wiki/Cell_casting

    Liquid monomer is poured between two flat sheets of toughened glass sealed with a rubber gasket and heated for polymerization. Because the glass sheets may contain surface scratches or sag during the process, this traditional method has some disadvantages: among other problems, the PMMA sheets may contain variations in thickness and surface ...