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polymethyl methacrylate |
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polymethyl methacrylate [′päl·i‚meth·əl mə′thak·rə‚lāt] (organic chemistry) A thermoplastic polymer that is derived from methyl methacrylate, CH2=C(CH3)COOCH3; transparent solid with excellent optical qualities and water resistance; used for aircraft domes, lighting fixtures, optical instruments, and surgical appliances. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Having thus far produced polystyrene and polymethyl methacrylate nanocomposite foams, Lee says his process can be used with any type of plastic, although certain polymers are more compatible. Those lenses were made from a hard plastic called polymethyl methacrylate, or PMMA, that allowed no oxygen to reach the area of the cornea under the lens. Sanduvor VSU white, free-flowing oxalanilide-type, nonhydroxy substituted ultraviolet absorber with reportedly excellent thermal stability recommended for thermoplastic polyester fibers, PVC, unsaturated polyesters, styrenic PC, polyacetal, polyamides, polymethyl methacrylate, PUR, and coatings resins. |
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