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Polyvinylidene poly

In still other NMR studies of mixtures, Douglass and McBrierty have considered the homogeneity of polyvinylidene fluoride - poly methylmethacrylate blends.(38) Here the energy exchange between proton and fluorine magnetic spins is efficient only if the nuclei are adjacent. The results indicate, when taken around 40°C, that either the fluorine nuclei in a 40 polyvinylidene fluoride/60 poly methylmethacrylate blend are... [Pg.181]

Widespread chlorine-containing polymers would include, 1) stable molding material for practical use such as polyvinyl chloride (PVC), polyvinylidene chloride and poly(epichlorohydrin)(PECH) and, 2) reactive polymers capable to introduce additional functional groups via their active chlorines such as chloromethyl polystyrene, poly (3-chloroethyl vinyl-ether) and poly (vinyl chloroacetate). While the latter, especially the chloromethyl polystyrene, has been widely used recently for the synthesis of variety of functional polymers, we should like to talk in this article about the chemical modification of the former, mainly of PVC and PECH, which was developed in our laboratory. [Pg.41]

Poly Vinyl ACetate Poly Vinyl ALcohol PolyVinyl Butyrate Poly Vinyl Chloride PolyVinyliDene Chloride Chlorinated PVC Unplasticized PVC... [Pg.896]

Photocross-linkability of a polymer depends not only on its chemical structure, but also on its molecular weight and the ordering of the polymer segments. Vinyl polymers, such as PE, PP, polystyrene, polyacrylates and PVC predominantly crosslink, whereas vinylidene polymers (polyisobutylene, poly-2-methylstyrene, polymethacrylates and polyvinylidene chloride) tend to degrade. Likewise, polymers formed from diene monomers and linear condensation products, such as polyesters and polyamides, cross-link easily, whereas cellulose and cellulose derivatives degrade easily.67... [Pg.77]

Suitable Plastics Fluorocarbons, chlorinated poly ether, polyvinylidene fluoride, polypropelene, high-density polyethylene, and epoxy glass. [Pg.118]

Gohil, R. M. and Petermann, J. Chain conformational defects in polyvinylidene fluoride. Polymer 22, 1612 (1981) Takahashi, Y. and Tadokoro, H. Formation mechanism of kink bands in modification II of poly(vinylidene fluoride). Evidence for flip-flop motion between TGTG and TGTG conformations. Macromolecules 13, 1316 (1980) Takahashi, Y., Tadokoro,... [Pg.58]

For the packaging of sensitive foods, PP films are coated with polyvinylidene chloride, polyvinyl acetate, EVAcopolymers, polyacrylates, styrene-butadiene copolymers, LDPE, poly-l-butene or random copolymers of propene with ethylene and 1-butene. By using these various coatings PP has recently sharply reduced the use of regenerated cellulose (cellophane), the previous market leader in this area. [Pg.26]

Coating of ultrafiltration/microfiltration membrane supports such as polyvinylidene fluoride (PVDF) or polysulfone (PSF) with solutions of polymers such as poly(ether-hlocfc-amide) [51]. [Pg.1108]

Typical UF membrane materials are polysulfone (PS), poly ether sulfone (PES), polyetheretherketone (PEEK), cellulose acetate (CA), polyacrylonitrile (PAN), polyvinylidene fluoride (PVDF), polyimide (PI), and polyetherimide (PEI) ... [Pg.2330]

The synthetic methods for carbyne employed so far have involved the dehydrohalogenation of polyvinylidene halides [7], dehydrochlorination of chlorinated polyacetylene [8], defluorination of poly(tetrafluoroethylene) [9], and phase transition from carbon materials, such as graphite, under severe conditions. [Pg.80]

Polytetrafluoroethylene (PTFE Teflon) was discovered accidently by PlunkettCZ nd commercialized by DuPont in the 1940 s. This polymer has a solubility parameter of about 6H and a high melting point of 327°C and is not readily moldable. Poly-chlorotrifluoroethylene (CTFE, Kel-F), the copolymer of tetrafluoroethylene and hexafluoropropylene (FEP), polyvinylidene fluoride (PVDF, Kynar), the copolymer of tetrafluoroethylene and ethylene (ETFE), the copolymer of vinylidene fluoride and hexafluoroisobutylene (CM-1), perfluoroalkoxyethylene (PFA) and polyvinyl fluoride (PVF, Tedlar) are all more readily processed than PTFE. However, the lubricity and chemical resistance of these fluoropolymers is less than that of PTFE. [Pg.92]

POLYMETHACRYLONITRILE, POLY-a-PHENYLACRYLONITRILE, POLY-a-CHLOROACRYLONITRILE AND POLYVINYLIDENE CYANIDE [141]... [Pg.77]

Fluoroplastic Homopolymer - A fluoropolymer entirely compiled of one monomer is called fluoroplastic homopolymer. Examples include poly-tetrafluoroethylene, polyvinylidene fluoride, and polyvinyl fluoride. [Pg.529]

Polymeric Membranes Economically important applications required membranes that could operate at higher pH than could CA, for which the optimum is around pH = 5. Many polymeric membranes are now available, most of which have excellent hydrolytic stabihty. Particularly prominent are polysulfone, polyvinylidene fluoride, poly-ethersulfone, polyvinyl alcohol-polyethylene copolymers, and acrylic copolymers. [Pg.2042]

Membrane contactors can be made out of flat sheet membranes, which have some commercial applications. However, the most common commercial membrane contactors are made from small-diameter microporous hollow-fiber (or capillary) membranes with fine pores that run from the inner surface to the outer surface of the hollow-fiber wall. The contactor resembles a tube-in-shell configuration with inlet-outlet ports for the shell side and tube side. These kinds of membranes are typically made of hydrophobic materials such as polypropylene (PP), polyethylene (PE), polytetrafluoroethylene (PTFE), poly(tetrafluoroethylene-co-perfluorovinylether) (PEA), or polyvinylidene fluoride (PVDE). The membrane in a contactor acts as a passive barrier and as a means of bringing two immiscible fluid phases, such as gas and liquid or an aqueous liquid and an organic liquid, into contact with each other... [Pg.54]

Poly Onnylidene fluoride) homopolymer. See Polyvinylidene fluoride resin... [Pg.1309]

Figure 3.8 The most frequently used methods to immobilize capture molecules onto microarray surfaces. (A) Antibody adsorption by poly-L-lysine-, nitrocellulose-, or polyvinylidene fluoride-treated surface. (B) Covalent binding using various silane reagents of APTES (3-aminopropyl)triethoxysilane, GPTS (3-gly-cidoxypropyl)trimethoxysilane, and MPTS (3-mercaptopropyl)trimethoxysilane. (C) Affinity interactions by biotin/streptavidine or histidine-tag/nickel-nitrilotri-acetic acid. (D) Diffusion-based (hydrogel) antibody-immobilization technique. Figure 3.8 The most frequently used methods to immobilize capture molecules onto microarray surfaces. (A) Antibody adsorption by poly-L-lysine-, nitrocellulose-, or polyvinylidene fluoride-treated surface. (B) Covalent binding using various silane reagents of APTES (3-aminopropyl)triethoxysilane, GPTS (3-gly-cidoxypropyl)trimethoxysilane, and MPTS (3-mercaptopropyl)trimethoxysilane. (C) Affinity interactions by biotin/streptavidine or histidine-tag/nickel-nitrilotri-acetic acid. (D) Diffusion-based (hydrogel) antibody-immobilization technique.
PBT = poly (butylene) terephthalate, PET=polyethylene terephthalate, PVDC=polyvinylidene chloride, PVDF=poly-vinylidene fluoride, PVC=polyvinyl chloride. [Pg.82]

Poly (vinylidene chloride-co-vinyl chloride). See Vinylidene chloride/vinyl chloride copolymer Vinyl chloride/vinylidene chloride copolymer Poly (vinylidene fluoride) homopolymer. See Polyvinylidene fluoride resin Polyvinylidene fluoride resin CAS 24937-79-9... [Pg.3608]

PVCC. See Polyvinyl chloride, chlorinated PVC/PVA PVCA/A copolymer. See Vinyl chloride/vinyl acetate copolymer PVDC. See Polyvinylidene chloride PVDF. See Polyvinylidene fluoride resin PVE. See Polyvinyl ethyl ether PVF PVFM. See Polyvinyl formal PVI. See Polyvinyl isobutyl ether PVM. See Polyvinyl methyl ether PVM/MA. See PVM/MA copolymer PVM/MA copolymer CAS 9011-16-9 52229-50-2 Synonyms 2,5-Furandione, polymer with methoxyethene 2,5-Furandione, polymer with methoxyethylene Methyl vinyl ether/maleic anhydride copolymer Poly (maleic anhydride-methyi vinyl ether) Poly (methyl vinyl ether-alt-maleic anhydride)... [Pg.3779]

Polyethylene, ultrahigh m.w. Poly (phenyleneterephthalamide) resin Polyvinylidene chloride 1,2,4,5-Tetramethylbenzene Zein fiber finishing, resin-bonded filters food-contact... [Pg.5240]

Polyarylate resin Polyarylether ketone resin Polyester carbonate resin Polyetherimide resin Polyethylene, chlorinated Polyethylene glycol Polyethylene, medium density Poly (p-methylstyrene) Poly (p-methylstyrene), rubber-modified Poly (oxy-1,2-ethanediyloxycarbonyl-2,6-naphthalenediylcarbonyl) resin Poly (oxy-p-phenylenesulfonyl-p-phenyleneoxy-p-phenyleneisopropylidene-p-phenylene) resin Poly (phenyleneterephthalamide) resin Polysulfone resin Poly (tetramethylene terephthalate) Polyvinylidene chloride Potassium sorbate Potato (Solanum tuberosum) starch Silica, colloidal Silicone Sodium N-alkylbenzenesulfonate Sodium bicarbonate Sodium tetraborate pentahydrate Starch, pregelatinized Styrene/acrylates copolymer Styrene/butadiene polymer Styrene/DVB copolymer , 1,1 -Sulfonylbis (4-chlorobenzene) polymer with 4,4 -(1-methylethylidene) bis (phenol) and 4,4 -sulfonylbis (phenol) Synthetic wax Tapioca starch Tetrafluoroethylene/perfluoro (propyl vinyl ether) copolymer Tocopherol Triglycidyl isocyanurate VA/crotonates copolymer Vinyl chloride/ethylene copolymer Wheat (Triticum vulgare) starch... [Pg.5315]

See other pages where Polyvinylidene poly is mentioned: [Pg.603]    [Pg.360]    [Pg.332]    [Pg.96]    [Pg.30]    [Pg.182]    [Pg.25]    [Pg.128]    [Pg.9]    [Pg.280]    [Pg.794]    [Pg.123]    [Pg.6]    [Pg.84]    [Pg.172]    [Pg.123]    [Pg.3]    [Pg.225]    [Pg.318]    [Pg.144]    [Pg.144]    [Pg.151]   


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Polyvinylidene

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