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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Acta Polymerica 39 (1988), S. 630-632 
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Lithium-Kalium-Copolyphosphate mit unterschiedlichem Li:K-Verhältnis wurden infrarotspektroskopisch untersucht. Die Anwesenheit eines zweiten Kations ändert die charakteristischen Eigenschaften der linearen langkettigen Polyphosphate nicht. Während das Li:K-Verhältnis und die mittlere Molekülmasse nur einen geringen Einfluß auf das Spektrum ausüben, nimmt die Intensität aller Banden mit zunehmendem Kaliumanteil zu.
    Notes: Infrared spectral analysis of lithium potassium copolyphosphates with various ratios of Li:K was carried out. The presence of an additional cation did not mask the characteristics of linear long-chain polyphosphates. While the Li:K ratio or the average molecular weight had little influence on the spectrum, the absorbances of all peaks were found to increase with increase in the proportion of potassium.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Acta Polymerica 41 (1990), S. 166-169 
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die bei Anwendung der PALIT-Beziehung 100ϱ0[η] + In M = K1M2/3 + K2 auf Lösungen einiger Polyphosphate und Copolyphosphate erhaltenen Ergebnisse wurden analysiert und mit der MARK-HOUWINK-Beziehung verglichen. Die Werte des Exponenten a in der MARK-HOUWINK-Beziehung sind für die Proben größer, die größere Werte K1 oder Kleinere Werte K2 in der von PALIT vorgeschlagenen Gleichung ergeben.
    Notes: The results obtained by testing the PALIT equation 100ϱ0[η] + In M = K1M2/3 + K2 with solutions of some polyphosphates and copolyphosphates have been analyzed and compared with the MARK-HOUWINK relationship. The values of the exponent a in the MARK-HOUWINK relationship were found to be higher for those samples which have higher values of K1 or lower values of K2 in the equation suggested by PALIT.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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