2 They are less resistant to solvents than acrylics but provide a good combination of high wet strength, excellent absorbency, durability and softness. 11002), and is subject to strict reporting requirements by facilities which produce, store, or use it in significant quantities. Poly(vinyl acetate-b-methyl methacrylate), polyvinyl acetate-b-acrylic acid), polyvinyl acetate-b-acrylonitrile), poly(vinyl acetate-b-vinylpyrrolidone), poly(vinyl acetate-b-styrene), and polyvinyl acetate-b-methyl methacrylate-b-styrene) were characterized by yield, selective precipitation, pyrolysis gas chromatograph, and differential scanning calorimetry (DSC). 3. Polystyrene homopolymer is hard and brittle at room temperature and does not easily form a film. Bei Vinylacetat-Anteilen von über 30 bis hin zu 90 % entsteht ein kautschukähnliches thermoplastisches Elastomer. The solid fraction of the emulsion polymerization of vinyl acetate initiated by peroxodisulfate using poly(viny1 alcohol) as protective colloid consists of a water-soluble fraction (unreacted poly(viny1 alcohol), graft copolymer of low grafting degree), an acetone-soluble fraction (poly(vinyl acetate) and graft copolymer of high grafting degree) and an insoluble fraction (crosslinked products). Vinyl chloride is a hard polymer (Tg~+80 °C) and is therefore unsuitable for many nonwoven products. Vinyl acetate is the acetate ester of vinyl alcohol. We use cookies to help provide and enhance our service and tailor content and ads. O 2 In der Photovoltaik werden Solarzellen in EVAC eingebettet. Subsequent evaluation: Suppl. XI. Vinyl acetate as a polymer constituent in imported polymers . After compounding of the graft products with polyvinylchloride the mechanical properties are represented in relation to the quantity and composition of the incorporated graft products. Bestimmung des Verzweigungsgrades und reaktionskinetischer Konstanten durch Messung der Mittelwerte des Polymerisationsgrades P̄w und P̄n als Funktion des Umsatzes, Polymerization of Ethylene by Trialkylaluminum-Lewis Base-Peroxide Catalyst, Treatise on adhesion and adhesives, vol 3, A Novel Reactor for Continuous Emulsion Polymerization, The emulsion polymerization of vinyl acetate in the presence of nonylphenol-polyoxyethylene adducts of various chain lengths, Blends of poly(vinyl acetate) and poly(ethyl methacrylate): Some mechanical properties, Preparation and structure of poly(vinyl alcohol)–poly(vinyl acetate) composite porous membrane, Pfropfreaktionen am Polyvinylalkohol. From the investigation of degrees of polymerization of poly(vinyl acetate) (PVAc) during the course of polymerization and those of corresponding hydrolyzed PVA, it was clarified that the degrees of polymerization of the batchwise system are much larger than those of the semicontinuous system, and long branches and shorter branches are formed in the batchwise and the semicontinuous systems, respectively. By continuing you agree to the use of cookies. (C) 1994 John Wiley & Sons, Inc. textile field, the polymer goes into bodying and stiffening agents, binders for pigments, fabric sizes, bonding agents for nonwoven textiles, and as a material that improves the abrasion resistance of the substrate. Oxygen is needed for these stabilizers to work effectively in acrylic monomers, but is not necessary for vinyl acetate monomer, and actually destabilizes it at elevated temperatures. 9. Es wird vorwiegend für Schuhsohlen oder als Polyblend zusammen mit anderen Elastomeren verwendet. Polymerization process aspects are covered with a focus on emulsion polymerization. B. Hydrochinon oder Methylhydrochinon in einer Konzentration von 3 bis 20 ppm) unterdrückt wird. + The major industrial route involves the reaction of ethylene and acetic acid with oxygen in the presence of a palladium catalyst. Name: Acetic acid ethenyl ester homopolymer, Polyvinyl alcohol Abstr. CH : 9003-20-7 Browse other articles of this reference work: The full text of this article hosted at iucr.org is unavailable due to technical difficulties. The role of the cosurfactant in the miniemulsion copolymerization of vinyl acetate and n-butyl acrylate, 1H-NMR Spectra of Ethylene—Vinyl Acetate Copolymers in the Presence of Shift Reagent, On-Line Particle Diameter for Poly(Vinyl Acetate) Latex Using Specific Turbidity Method, The vinyl interchange reaction: I—vinyl acetate with carboxylic acids stronger than acetic acid, Solvent effects in the free radical copolymerization of vinyl acetate and methyl methacrylate, Synthesis of casein-G-poly(vinyl acetate).

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