Plexiglas Poly

Plexiglas Poly(methyl methacrylate) Rohm Haas... 

Poly(methyl methacrylate) (Plexiglas) Poly(12-aminododecanoic acid) Poly(ll-aminoundecanoic acid) Polyacrylonitrile Poly(vinyl alcohol)... 

Poly(methyl methacrylate) (Plexiglas) Poly(hexamethylene sebacamide)... 

Naturally occurring polymers include proteins, nucleic acids, cellulose (polysaccharides), and rubber (polyisoprene). Most synthetic polymers are organic compounds. Familiar examples are nylon, poly(hexamethylene adipamide) Dacron, poly (ethylene terephthalate) and Lucite or Plexiglas, poly(methyl methacrylate). 

Two coats of these paints were applied 5 h apart over a heavily chalked latex paint on a white pine board. Because significant differences have been seen between individual chalky test substrates, common control paints containing unmodified HASE, (hydroxyethyl)cellulose (HEC), and HEUR thickeners were included in each test. Test paints were dried for 18 h at 25 BC and 50% relative humidity and then placed in a fog box for 5 h. (The fog box is a Plexiglas (poly(methyl methacrylate)) box with six spray nozzles on the inside top that continuously spray a fine mist of water over the painted panels placed about 15B off the vertical in racks about 10 in. (1 in. z 2.54 cm) below the nozzles.) We used two different fog boxes one sprayed deionized water and one sprayed tap water. 

Examples of commercial poly(methyl methacrylate) sheet are Perspex (ICI), Oroglas and Plexiglas (Atoglas). Poly(methyl methacrylate) moulding powders include Diakon (ICI), Acry-ace (Fudow Chemical Co., Japan), Lucite (Du Pont) and Vedril (Montecatini). 

The polymerization of methyl methacrylate produces poly(methyl methacrylate), an exceptionally clear plastic sold under the names Plexiglas or Lucite as a shatter-proof substitute for glass in windows, doors, and other glazing applications. 

Another polymer used for unbreakable windows is poly(methyl methacrylate). PMMA is a vinyl polymer, made by free radical vinyl polymerization from the monomer methyl methacrylate, according to the reaction in Fig. 14.4.5. Rohm and Haas introduced this PMMA-based shatterproof glass as Plexiglas. ... 

Poly (methyl methacrylate) has excellent optical properties and is marketed under the names Lucite, Plexiglas, and Perspex. 

Conversely, vesicants have also been thickened with various substances to enhance deployment, increase their persistency, and increase the risk of percutaneous exposure. Thickeners include polyalkyl methacrylates (methyl, ethyl, butyl, isobutyl), poly(vinyl acetate), polystyrene, plexiglas, alloprene, polychlorinated isoprene, nitrocellulose, as well as bleached montan and lignite waxes. Military thickener K125 is a mixture of methyl, ethyl, and butyl polymethacrylates. When thickened, agents become sticky with a consistency similar to honey. Typically, not enough thickener is added to affect either the color or odor of the agent. 

Plexiglas A Trademark of Rohm Haas Company for thermoplastic, poly (methyl methacrylate) - type polymers... 

Adhesion of Coatings. Except for K-l polycarbonate [4,4 -(2-nor-bornylidene)diphenol polycarbonate] (4), an experimental polymer (inherent viscosity 0.85), all the coatings were prepared with commercial products EAB-381-0.5 and EAB-381-20 cellulose acetate butyrates from Eastman Chemical Products, Inc. VYHH vinyl chloride (87%)/vinyl acetate (13%) copolymer from Union Carbide Corp. Butvar B76 poly-(vinyl butyral) from Shawinigan Resins Corp. Plexiglas V poly (methyl methacrylate) from Rohm and Haas Co. Dylene P3I polystyrene from... 

Glassy polymers, or glasses, are differentiated from rubbery polymers by their hard, rigid, glass-like structure [e.g., poly(methyl methacrylate) (PMMA) (i.e., Lucite , Plexiglas )] at room temperature. Rubbery polymers (e.g., polyethylene,... 

PMMA poly(methylmethacrylate) or Plexiglas or Lucite or acrylic... 

Pleated sheet conformation, 30,31 PLEDs (polymeric light-emitting diodes), 218 Plexiglas, 62 Plunkett, Roy, 65-66 PMMA. See Poly(methyl methacrylate) Polartec (Polar Fleece), 194 Poly(6-aminohexanoic acid), 25 Poly(a methyl styrene), 20 Polyacetylene, 72, 73 Polyacrylamide, 20 Polyamides, 22, 28, 61, 146 biodegradable, 185 Polyaramids, 77, 86 Polybutadiene, 70,109,148,155 Poly butyl acrylate), 20 Poly(butylene isophthalate), 25 Polycaprolactam, 21 Polycarbonate (PC), 17, 48, 86, 140 biodegradable, 185 density of, 247 impact strength of, 143 permeability of, 163 Polychloroprene, 65 Polycondensation, 85, 90-91 interfacial, 91-92... 

Tg taken as midpoint in baseline transition at a heating rate of 10°C/min. b Inherent viscosity, (lnijr i)/c, where c = 0.25 g/dL, in benzene. c Rohm and poly (methyl methacrylate). Plexiglas type V-811. d Prepared by radical suspension bead polymerization by J. L. Tucker. Dissolved in benzene, precipitated, and freeze dried from benzene. Numbers in parentheses are the percentages of styrene determined by NMR. 

The imaging performance of the CW-NMRI system can be demonstrated by showing 2- and 3-D images of a rigid polymer such as poly (methyl methacrylate) (PMMA) (Perspex/Plexiglas). Spectroscopic investigations carried out on this... 

Methyl methacrylate (MMA) is an important commodity since it is polymerized to give poly methylmethacrylate (PMMA), a strong, durable and transparent polymer sold under the trade-names Perspex and Plexiglas. Since the conventional routes to MMA involve either the reaction of acetone with HCN to give the cyanohydrin (which has environmental problems), or the oxidation of isobutene, alternative carbonylation routes to MMA are being developed. One of these is the Lucite Alpha process which is claimed to decrease production costs by ca. 40%. This first synthesizes methyl propionate by a methoxycarbonylation of ethylene (Equation 23), using a palladium catalyst with very high (99.8%) selectivity. In the second step, MMA is formed in 95% selectivity by the reaction of methyl propionate with formaldehyde (Equation 24). 

Plexiglas GP Poly(methyl methacrylate) 111 107.8 725 138 134.6 132 Measurements of Dynamic Modulus by DMA Multiplex 2 C step heating... 

Draw the structure of poly(methyl methacrylate), a polymer used in Lucite and Plexiglas, and formed from radical polymerization of methyl methacrylate [CH2=C(CH3)COOCH3]. 

Injection valves designed for FIA are produced by a number of manufacturers. These valves are often microprocessor controlled (26) and are quite versatile. However, for all of the analyses described later, a simple low-pressure rotary injection valve designed for liquid chromatography is adequate (e.g., Rheodyne Model 50). Pneumatic and electric actuators are available for automated operation. An injection valve that can be machined quite easily from poly(tetrafluoroethylene) (PTFE, Teflon) and Plexiglas is described elsewhere (25, 27). 

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