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  • 1975-1979  (2)
  • 1965-1969  (2)
  • Physics  (2)
  • Analytical Chemistry and Spectroscopy  (1)
  • Industrial Chemistry  (1)
  • Action Programme
  • 1
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-2: Polymer Physics 5 (1967), S. 555-568 
    ISSN: 0449-2978
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A simple differential, isothermal calorimeter has been built to study the thermodynamics of interactions associated with a variety of polymer solution processes. The calorimeter is readily operated at temperatures ranging from ambient to about 200°C., temperature adjustments are rapid, and the apparatus is rugged enough to permit application to commercial process studies. Though less sensitive than microcalorimeters, it represents an attractive combination of satisfactory accuracy, speed, and flexibility of operation. The operation of the calorimeter is demonstrated by measurements of the heat of solution of sodium chloride in water and the heats of solution of various polyolefins in Tetralin and α-chloronaphthalene. The latter tend to confirm the presence of polymer aggregates in chloronaphthalene solutions below the thermodynamic melting temperature of the polymer.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 39 (1967), S. 218-224 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Bei Rührwerken zum Mischen zäher, ineinander löslicher Flüssigkeiten hängen Drehmoment und Rührleistung von der Rührwerksgeometrie, den rheologischen Eigenschaften des Rührguts und der Rührerdrehzahl ab. Ein Diagramm zeigt die Drehmoment- und Leistungsbeiwerte von neun Rührern in Abhängigkeit von der Reynolds-Zahl. Um die Mischwirkung der verschiedenen Bauarten miteinander zu vergleichen, kann man die zum Entfärben einer Testflüssigkeit nötige spezifische Mischarbeit als Vergleichsgröße benutzen. Photographische Aufnahmen geben die von der Rührerbauart abhängige Totzonenbildung wieder.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    X-Ray Spectrometry 5 (1976), S. 49-54 
    ISSN: 0049-8246
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Description / Table of Contents: With special reference to the X-ray fluorescence analysis of aerosol samples, two problems are treated. These are, first, a simple method of preparing standards on filter paper disks (it consists of applying drops of one microlitre of solutions in an exact point raster) and second, the influence of absorption and scattering by the filter paper matrix and the aerosol layer. It is suggested to use one-layer and three-layer sample arrangements to gain corrective terms of the matrix and particle size effects.
    Notes: Zwei bei der Röntgenfluoreszenzanalyse von Aerosol-präparaten auftretende Probleme werden behandelt: (1) eine einfache und genaue Methode zur Herstellung von Eichpräparaten. Es wird vorgeschlagen, definierte Lösungstropfen in einem exakten Punktmuster auf Filterpapier aufzubringen. (2) Die Korrektur der Streu- und Absorptionseffekte des Filters und der abgeschiedenen Schwebstoffe. Die aus Messungen in Einfach- und Dreifach-Filterpaketen gewinnbaren Korrekturterme werden am Beispiel des erfahrungsgemäß kritischen Elements Calzium dargestellt.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 17 (1979), S. 1269-1273 
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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