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  • Wiley-Blackwell  (5)
Document type
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Years
  • 1
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 23 (1979), S. 3553-3561 
    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: A method for the determination of composition and content of pendent double bonds in untreated samples of styrene-ethylene dimethacrylate and styrene-divinylbenzene copolymers from Raman spectra has been developed. By computer treatment of spectra it was shown that Raman spectra are sensitive to the distribution of components in the studied copolymers.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 64 (1977), S. 147-156 
    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: Eine qualitative Analyse der Reaktionsprodukte der Polykondensation von Terephthalsäure mit äthylenglykol wurde mit einem Styrol-Divinylbenzol-Gel (4% des Vernetzers) in Tetrahydrofuran gelchromatographisch durchgeführt. Die adsorptiven Effekte wurden durch Zugabe von Essigsäure eliminiert. Eine Eichkurve für die Identifizierung der einzelnen linearen und cyclischen Oligomeren, die in der Reaktionsmischung an-wesend sind, wird angegeben.
    Notes: A quantitative gel permeation chromatography analysis of polycondensation mixtures of terephthalic acid with ethylene glycol was carried out on a styrene-divinylbenzene copolymer (4% of crosslinking agent) using tetrahydrofuran as eluent. Adsorption effects on the gel were suppressed by addition of acetic acid. A calibration curve for the identification of linear and cyclic oligomers present in the reaction mixture is given.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 85 (1973), S. 456-456 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Concentrations of the initial components and of p-nitrobenzoic acid and N-methyl-p-toluidine (or N-methylmesidine) were followed on the reaction between p.p′-dinitrobenzoyl-peroxide and N.N-dimethyl-p-toluidine (or N.N-dimethylmesidine). In the products of the reaction between benzoylperoxide and N.N-dimethylaniline, N.N-dimethyl-p-toluidine or N.N-dimethylmesidine the contents of the initial amine, benzoic acid, CH2O and secondary amine were determined.The data found support the suggestion, that the primary products of the reactions between benzoylperoxide and tertiary amine (C6H5N(R′)CH(R)OCOC6H5) can condensate either with the initial amine or with each other to produce benzoic acid and dehydrogenated oligomers of the initial amine.The GPC analysis data of the products of the reaction between benzoylperoxide and N.N-dimethylaniline corroborate the presence of the initial amine oligomers in the reaction mixture.
    Notes: Die zeitliche Änderung der Konzentrationen der Ausgangskomponenten und der p-Nitrobenzoesäure sowie des N-Methyl-p-toluidins (oder N-Methylmesidin) wurde bei der Umsetzung des p.p′-Dinitrobenzoylperoxids mit N.N-Dimethyl-p-toluidin (oder N.N-Dimethylmesidin) verfolgt. In den Produkten der Reaktion von Dibenzoylperoxid mit N.N-Dimethylanilin, N.N-Dimethyl-p-toluidin oder N.N-Dimethylmesidin wurde der Gehalt an Ausgangsamin, Benzoesäure, Formaldehyd und sekundären Aminen bestimmt.Die gefundenen Ergebnisse unterbauen die Annahme, daß die primären Produkte der Reaktionen des Dibenzoylperoxids mit tertiären Aminen (C6H5N(R′)CH(R)OCOC6H5) entweder mit dem Ausgangs-Amin oder miteinander kondensieren können und dabei Benzoesäure und dehydrierte Oligomere des Ausgangs-Amins bilden.Durch gelchromatographische Analyse der Reaktionsprodukte von Dibenzoylperoxid mit N.N-Dimethylanilin wurde die Anwesenheit der Oligomeren der Ausgangs-Amine im Reaktionsgemisch nachgewiesen.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 105 (1967), S. 280-284 
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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