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Tetrafluorethylene

Other fluorine-containing plastics These materials, in general, attempt to compromise between the exceptional end-use properties of p.t.f.e. and the processability of ordinary thermoplastics. Examples include polychlor-trifluorethylene, tetrafluorethylene-hexafluorpropylene copolymers (FEP resins) and polyvinylidene fluoride. Polyvinyl fluoride is available in film form (Tedlar) with excellent weathering resistance. [Pg.933]

Particularly relevant is the case of some copolymers of PVDF. Already small amounts (5-20% by mol) of a fluorolefinic comonomer (vinyl fluoride (VF) [89-90], trifluoroethylene [91-93], tetrafluorethylene [94, 95]) can force the polymers to a melt crystallization in the piezoelectric P form. (We recall that the homopolymer crystallizes in the non-piezoelectric a form, by melt crystallization). [Pg.204]

All solutions were filtered through a 0.5 ym Fluoropore poly(tetrafluorethylene) filter (FHUP, Millipore Corp.). The solvents trichlorobenzene (TCB), o-dichlorobenzene (ODCB) and a-chloronapthalene (aCN) were used as received without further purification. [Pg.274]

ETFE TelzeF t ethylcne-tetrafluorethylene copolymer (For chemical resistance, see FEP ratings)... [Pg.206]

PMMA PNGV PO POx PPMA PrOx PTFE PVD PZT Poly-methylmethacrylate Partnership of New Generation Vehicles Propylene oxide Partial oxidation Poly-methyl methacrylate Preferential carbon monoxide oxidation Poly-tetrafluorethylene Physical vapor deposition Lead-zirconate-titanate... [Pg.685]

A method for the determination of cholesterol has been adapted. The color developed in the presence of ferric chloride, sulfuric acid, and glacial acetic acid has been utilized for the analysis. The use of such strong reagents has required employment of tetrafluorethylene tubing. These acid reagents are not pumped directly from reagent bottles but are displaced from reservoirs by fluid pumped into the reservoir behind a flexible diaphragm. [Pg.354]

Effect of Molecular Weight and Melt Time and Temperature on the Morphology of Poly(tetrafluorethylene)... [Pg.89]

Keywords Bands Morphology Nanofibrils Poly(tetrafluorethylene) Single crystals Shish kebabs... [Pg.90]

Fig. 1 Fracture surface of granular (bulk-polymerized) poly(tetrafluorethylene (PTFE). The sample was held in the melt at 380 °C for an unspecified time followed by slow cooling and fracture after immersion in liquid N2. (Reprinted from Ref. [1] with permission from Wiley-Interscience)... Fig. 1 Fracture surface of granular (bulk-polymerized) poly(tetrafluorethylene (PTFE). The sample was held in the melt at 380 °C for an unspecified time followed by slow cooling and fracture after immersion in liquid N2. (Reprinted from Ref. [1] with permission from Wiley-Interscience)...
Specimen Conditioning. The sample was first placed in the preparation chamber and heated to 350 C. During this first heating in vacuum, there was normally some evolution of gas. The mass spectrum of the gas closely matched that of the tetrafluorethylene monomer. [Pg.225]

Note ETFE, copolymer of ethylene and tetrafluoroethylene MFA, copolymer of perfluoromethylvi-nylether and tetrafluorethylene PFA, copolymer of perfluoropropylvinylether and tetrafluoroethylene FEP, fluorinated ethylene-propylene copolymer PCTFE, poly(chlorotrifluoroethylene) PVDF, poly(vinylidene fluoride) VDF-HFP, copolymer of vinylidene fluoride and hexafluoropropylene. [Pg.30]

ACGIH TLV 0.1 ppm DOT CLASSIFICATION 2.2 Label Nonflammable Gas SAFETY PROFILE Mildly toxic by inhalation. Explosive reaction with Grignard reagents (e.g., phenylmagnesium bromide). Reacts with tetrafluorethylene + air to form explosive peroxides. When heated to decomposition it emits toxic fumes of F". [Pg.718]

SYNS FLUOROPLAST4 PERFLUOROETHENE PERFLUOROETHYLENE TETRAFLUORETHYLENE TETRAFLUOROETHENE TETRAFLUOROETHYI.-ENE, inhibited (DOT)... [Pg.1317]

TETRAFIDON see CKMOOO TETRAFINOL see CBYOOO TETRAFLUORETHYLENE see TCH500 (T-4)-TETRAFLUOROBERYLLATE(2-) DIAMMONIUM see ANH300... [Pg.1904]

Vinyl and vinylidene monomers are basically unsymmetrical because the iwo ends of the double bond are distinguishable (ethylene and tetrafluorethylene are exceptions). One C of the double bond can be arbitrarily labeled the head and the other the tail of the monomer, as shown in the formula for vinyl fluoride (4-3). [Pg.122]

Nonphotochemical cycloadditions of hexafluorothioacetone to alkenes (vinyl ethers, vinyl sulfides, " cyclohexene, and dimethyl maleate " ) have been observed, as illustrated for methyl vinyl ether. The formal addition of thiocarbonyl fluoride to tetrafluorethylene to give hexafluorothietane occurs on thermolysis at 600-700° (lO " mm) of a copolymer of the two components. " QO-Dimethyldithiooxalate undergoes a thermal cycloaddition to quadricyclane to give thietane 51a. ... [Pg.453]

See other pages where Tetrafluorethylene is mentioned: [Pg.273]    [Pg.274]    [Pg.355]    [Pg.380]    [Pg.231]    [Pg.229]    [Pg.244]    [Pg.181]    [Pg.191]    [Pg.126]    [Pg.179]    [Pg.82]    [Pg.233]    [Pg.217]    [Pg.240]    [Pg.185]    [Pg.185]    [Pg.89]    [Pg.281]    [Pg.682]    [Pg.79]    [Pg.84]    [Pg.98]    [Pg.99]    [Pg.771]    [Pg.2]    [Pg.1295]    [Pg.516]   
See also in sourсe #XX -- [ Pg.30 ]

See also in sourсe #XX -- [ Pg.2 ]

See also in sourсe #XX -- [ Pg.30 ]

See also in sourсe #XX -- [ Pg.130 ]

See also in sourсe #XX -- [ Pg.75 ]



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Poly-tetrafluorethylene

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