Results 291 to 300 of about 115,294 (351)
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Grafting reactions of vinyl acetate onto poly[(vinyl alcohol)-co-(vinyl acetate)]
Journal of Polymer Science Part A: Polymer Chemistry, 1996The grafting preference of vinyl acetate onto the methine carbon of poly(vinyl alcohol) (PVOH) versus the acetate group of poly(vinyl acetate) (PVAc) was determined as part of an attempt to prepare novel branched PVOH from partially hydrolyzed PVAc. The results showed long chain grafting on the acetate groups of the PVAc units rather than the methine ...
Thomas J. Markley +2 more
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The Journal of Chemical Thermodynamics, 1998
Abstract Isobaric (vapour+liquid) equilibria were determined at p =101.3 kPa for (methanol+butyl acetate), (methanol+isobutyl acetate), (vinyl acetate+butyl acetate), and (vinyl acetate+isobutyl acetate). The thermodynamic consistency of the experimental data was checked by using a modified Dechema test. The activity coefficients were correlated with
J.M. Resa +3 more
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Abstract Isobaric (vapour+liquid) equilibria were determined at p =101.3 kPa for (methanol+butyl acetate), (methanol+isobutyl acetate), (vinyl acetate+butyl acetate), and (vinyl acetate+isobutyl acetate). The thermodynamic consistency of the experimental data was checked by using a modified Dechema test. The activity coefficients were correlated with
J.M. Resa +3 more
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The systems vinyl acetate-toluene and vinyl acetate-propyl bromide-toluene
Journal of Chemical & Engineering Data, 1989Les donnees experimentales des systemes binaire et ternaire sont correlees par diverses equations (sur la correlation des points d'ebullition, de Redlich Kister)
Jaime Wisniak, Abraham Tamir
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Die Angewandte Makromolekulare Chemie, 1979
AbstractThe thermochromism of the iodine complex membranes of poly(vinyl acetate) and vinyl acetate‐vinyl propionate copolymers was investigated at the states of different humidity. The complex membranes which were maintained in water and in wet air showed a reversible colour change by a heating‐cooling cycle, while the complex membrane in dry air was ...
Makoto Tanaka, Kiyoshi Mizutani
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AbstractThe thermochromism of the iodine complex membranes of poly(vinyl acetate) and vinyl acetate‐vinyl propionate copolymers was investigated at the states of different humidity. The complex membranes which were maintained in water and in wet air showed a reversible colour change by a heating‐cooling cycle, while the complex membrane in dry air was ...
Makoto Tanaka, Kiyoshi Mizutani
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ChemInform Abstract: VINYL ACETATES FROM VINYL BROMIDES
Chemischer Informationsdienst, 1976AbstractAus Cu(II)‐acetat wird nach verschiedenen Verfahren, z.B. mit Hydrazin‐hydrat, Cu(I)‐acetat hergestellt, das mit Vinylbromiden glatt zu den entsprechenden Vinyl‐acetaten reagiert.
G. W. KLUMPP +4 more
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Conformations of vinyl formate and vinyl acetate
Australian Journal of Chemistry, 1976Ab initio molecular orbital theory has been used to deduce the preferred gas-phase conformations of vinyl formate and vinyl acetate. In addition, experimental dipole moments (1030µ/Cm) and molar Kerr constants (1027mK/m5 V-2 mol-1) at 25ºC are reported for both molecules as solutes in carbon tetrachloride: vinyl formate (5.07, + 48.1) and vinyl acetate
MJ Aroney +4 more
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Fibers and Polymers, 2006
Poly(vinyl acetate) (PVAc)/poly(vinyl alcohol)(PVA)/montmorillonite (MMT) clay nanocomposite microspheres with a core/shell structure have been developed via a suspension polymerization approach. In order to prepare the PVAc/MMT and PVAc/PVA/MMT nanocomposite microspheres, which are promising precursor of PVA/MMT nanocomposite microspheres, suspension ...
Hye Min Jung +9 more
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Poly(vinyl acetate) (PVAc)/poly(vinyl alcohol)(PVA)/montmorillonite (MMT) clay nanocomposite microspheres with a core/shell structure have been developed via a suspension polymerization approach. In order to prepare the PVAc/MMT and PVAc/PVA/MMT nanocomposite microspheres, which are promising precursor of PVA/MMT nanocomposite microspheres, suspension ...
Hye Min Jung +9 more
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Journal of Macromolecular Science: Part A - Chemistry, 1974
Abstract Acid (HCL) catalyzed methanolysis of vinyl acetate-vinyl chloride copolymers was carried out in solvent mixtures with various amounts of methanol and tetrahydrofuran. The effect of the sovent composition on the initial rate suggests the existence of preferential solvation.
C. Pichot, J. Guillot, A. Guyot
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Abstract Acid (HCL) catalyzed methanolysis of vinyl acetate-vinyl chloride copolymers was carried out in solvent mixtures with various amounts of methanol and tetrahydrofuran. The effect of the sovent composition on the initial rate suggests the existence of preferential solvation.
C. Pichot, J. Guillot, A. Guyot
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