PMMA

(redirected from Polymethylmethacrylate)
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.
Related to Polymethylmethacrylate: Perspex, plexiglass, PMMA, Acrylic plastic
AcronymDefinition
PMMAPolymethylmethacrylate (Acrylic)
PMMAPoverty Monitoring, Measurement and Analysis
PMMAPhilippine Merchant Marine Academy
PMMAPresbyterian Manors of Mid-America
PMMAProject Management Maturity Assessment (Stanford Advanced Project Management)
PMMAPrecious Metals Marking Act (criminal statute; Canada)
References in periodicals archive ?
Dental resins consisting of Mono methyl methacrylate(MMA) and Polymethylmethacrylate (PMMA)are the most commonly used polymers since 1960 especially in the field of prosthodontic, orthodontics, surgery thus having an unavoidable purpose in dentistry.
Hollick EJ (7) et al, studied the effect of polymethylmethacrylate, silicone and polyacrylic intraocular lenses on posterior capsular opacification 3 years after cataract surgery found out that polyacrylic lenses were associated with less PCO (10%) than silicone (40%) and PMMA lenses (56%) after 3 years.
Heparin-Surface-Modified Polymethylmethacrylate Intraocular Lense
Nylon is a crystalline polymer whereas polymethylmethacrylate is amorphous.
sup][12] After the proper positioning and length were verified, the appropriate-sized titanium intramedullary nail (Zimmer Corporation, USA) was driven into the canal first, and then the entire tumor cavity was filled as completely as possible with polymethylmethacrylate (PMMA).
beta]-Galactosidase from Aspergillus oryzae, polymethylmethacrylate, cellulose acetate, glucose oxidase-peroxidase assay kit, and o-nitrophenyl [beta]-D-galactopyranoside (ONPG) was obtained from Sigma Chem.
However, these materials have poor scratch resistance compared to polymethylmethacrylate (PMMA) materials, though PMMA materials do not have adequate impact resistance and flame retardancy.
Studies with evolving commercial polymers, such as polymethylmethacrylate (PM MA) and polylactic acid (PLA), show how the structural information revealed by measuring viscosity parameters enables researchers to intelligently modify polymer chain length and branching to meet precise goals.
The actual process for making polymethyl methacrylate starts by reacting acetone with hydrogen cyanide to produce acetone cyanohydrin, which is then converted to methyl methacrylate, which in turn is then polymerized to yield polymethylmethacrylate.
SABIC, for example, is already making great strides toward a bigger and brighter future by developing the world's largest integrated methacrylate (MMA) and polymethylmethacrylate (PMMA) plant in the world.
Studies with evolving commercial polymers, such as polymethylmethacrylate (PMMA) and polylactic acid (PLA), show how the structural information revealed by measuring viscosity parameters enables researchers to intelligently modify polymer chain length and branching to meet precise goals.
The avian chapter has the most drug classifications with each chapter having comparable sections, again as those drug/treatment groups are available or appropriate for a particular species and includes antimicrobial, antifungal, antiviral, and immunomodulating agents; antiparasitic agents; chemical restraint/anesthetic/analgesic agents; nonsteroidal anti-inflammatory agents; hormones/steroids: nebulization agents; agents used to treat toxicologic conditions; psychotropic agents; nutritional/mineral support; ophthalmologic agents; oncologic agents; antimicrobial-impregnated polymethylmethacrylate (PMMA) agents; agents used to treat oiled birds; agents used in bird emergencies; and euthanasia agents.