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  • Wiley-Blackwell  (4)
  • 1985-1989  (4)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Synthesis and study of the chelating properties of 3-carboxy-4-hydroxyacetophenone-formaldehyde resins (1988)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 160 (1988), S. 175-186 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: 3-Carboxy-4-hydroxyacetophenon (CHAP) wurde in verschiedenen Mengenverhältnissen mit Formaldehyd unter Verwendung von Alkali als Katalysator polykondensiert. Die erhaltenen Polykondensate (CHAP-F) wurden durch Elementaranalyse, IR-Spektroskopie, Bestimmung des Zahlenmittels der Molmasse (M̄n), Thermogravimetrie und Bestimmung der Grenzviskosität charakterisiert. Es wurden polymere Metallchelate mit Cu2+ -, Fe3+ -, Co2+ -, Ni2+ - und UO2+2 -Ionen hergestellt und charakterisiert. Mit Hilfe der Batch-Austauschmethode wurden Ionenaustauschereigenschaften eines CHAP-F Harzes gegen Fe3+ - Cu2+ - und Ni2+ -Ionen bestimmt.
    Notes: 3-Carboxy-4-hydroxyacetophenone (CHAP) was polycondensed with various proportions of formaldehyde using alcoholic alkali as catalyst. The resin samples, designated as CHAP-F, have been characterized by elemental analyses and IR spectroscopy, by estimation of their number average molecular weights (M̄n), by measurement of intrinsic viscosity, and by TGA. Polymeric metal chelates of one CHAP-F sample with Cu2+, Fe3+, Co2+, Ni2+, and UO22+ ions have been prepared and characterized.Ion-exchanging properties of one CHAP-F resin sample for Fe3+, Cu2+, and Ni2+ metal ions are studied by the application of the batch-equilibration method.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1988.051600114
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  • 2
    Electronic Resource
    Electronic Resource
    Differential scanning calorimetry investigation of curing of bisphenolfurfural resins (1986)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 26 (1986), S. 1186-1190 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Bisphenolic resins have been prepared by alkali catalyzed condensation of bisphenol-F, bisphenol-A, and bisphenol-C, respectively, with furfural. The resin samples have been characterized by elemental analysis, dilute solution viscosity measurement, and measurement of number-average molecular weight. Curing reactions of these bisphenolic resins with hexamine have been investigated by differential scanning calorimetry. The overall apparent activation energies for the curing have been found to be 24 ± 2, 34.2 ± 1.9, and 36.8 ± 2.3 kcal/mole for bisphenol-F-furfural, bisphenol-A-furfural, and bisphenol-C-furfural resin, respectively. The curing reactions have been found to follow an overall first-order kinetics.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760261704
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesis and characterization of poly(keto-amines)Part 1, 2 cf.1,2.. 3. poly(keto-amines) containing phenolic groups (1987)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 149 (1987), S. 151-159 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Selbstkondensationen von 5-Amino-2-hydroxyphenacylchlorid (5A2HP), 3-Amino-4-hydroxyphenacylchlorid (3A4HP) und 4-Amino-2-hydroxyphenacylchlorid (4A2HP) wurden in Nitrobenzol mit Pyridin als Säureakzeptor ausgeführt. Die so erhaltenen Polyketoamine wurden wie folgt charakterisiert: Elementaranalyse, thermogravimetrische Analysen in Luft, IR-spektroskopische Untersuchungen, Bestimmung von M̄n durch nichtwässrige konduktometrische Titration und/oder durch Dampfdruckosmometrie und durch Messung der Viskosität in Ameisensäure. Alle drei Polyketoamine wurden zu Polyaminen reduziert (Wolf-Kishner Reduktion). Die so erhaltenen Polyamine wurden charakterisiert und miteinander verglichen.Die aus 5A2HP und 3A4HP erhaltenen Polyketoamine wurden mit verschiedenen Metallionen zu polymeren Metallchelaten umgesetzt und diese dann charakterisiert.
    Notes: Self polycondensations of 5-amino-2-hydroxyphenacyl chloride (5A2HP), 3-amino-4-hydroxyphenacyl chloride (3A4HP), and 4-amino-2-hydroxyphenacyl chloride (4A2HP) are carried out in nitrobenzene using pyridine as an acid acceptor. The poly(keto-amines) thus formed are characterized by elemental analysis, IR spectral studies, estimation of M̄n by non-aqueous conductometric titration and/or by VPO method, by measurement of solution viscosity in formic acid, and by TGA in air. All three poly(keto-amines) are reduced to poly(amines) by Wolf-Kishner reduction. The poly(amines) thus formed are characterized and compared.Polymeric metal chelates of poly(keto-amines) derived from 5A2HP and 3A4HP with various metal ions are prepared and characterized.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1987.051490112
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  • 4
    Electronic Resource
    Electronic Resource
    Synthesis, characterization, and curing of o-and p-chlorophenol-furfural resins (1989)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 37 (1989), S. 925-933 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Polycondensation of furfural, respectively, with o- and p-chlorophenols has been carried out under various reaction conditions. All the resin samples have been characterized by spectral studies, viscometric measurement and by the estimation of the number-average molecular weight. Thermogravimetric analysis (TGA) of selected resin samples has been carried out. The kinetics of curing reaction of selected resin samples has been investigated by differential scanning calorimetry (DSC). The properties of the glass laminates prepared using each of the two types of resins showed that the latter are much less suitable than phenol-furfural resin as matrices for the fabrication of laminates.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1989.070370407
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