| 释义 |
polymethyl methacrylate
Thesaurus| Noun | 1. | polymethyl methacrylate - a transparent plastic used as a substitute for glassacrylate resin, acrylic resin, acrylic - a glassy thermoplastic; can be cast and molded or used in coatings and adhesivesLucite, Perspex - a trademark for a transparent thermoplastic acrylic resinPLEXIGLAS - (trademark) a light transparent weather resistant thermoplastic |
polymethyl methacrylate
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. methyl methacrylateA tough, rigid, transparent acrylic plastic having good resistance to common solvents and acids; subject to crazing.polymethyl methacrylate
polymethylmethacrylate, polymethyl methacrylate (pol′ē-meth′ĭl-meth″ak′rĭ-lāt″) [ poly- + methyl + methacryl(ic acid) + -ate], PMMAC5H8O2, 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.polymethyl methacrylate
Words related to polymethyl methacrylatenoun a transparent plastic used as a substitute for glassRelated Words- acrylate resin
- acrylic resin
- acrylic
- Lucite
- Perspex
- PLEXIGLAS
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