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  • 1990-1994  (1)
  • 1990  (1)
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  • 1990-1994  (1)
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    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Acta Polymerica 41 (1990), S. 333-338 
    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: Comparing a C-6-substituted carboxy cellulose and carboxy methyl cellulose samples differing in substituent distribution, the acidity of the COOH-group and the symplex formation of these polymers are investigated. The acidity of the COOH-group is inversely correlated to the average distance between the anionic charge centre and the anhydroglucose ring. Obviously, no significant effect of the regioselectivity of substitution on symplex formation exists.
    Notes: Es wird über vergleichende Untersuchungen zur Acidität der Carboxygruppe und zur Symplexbildung bei einer C-6-substituierten Carboxycellulose einerseits, Carboxymethylcellulosen mit unterschiedlicher Substituentenverteilung andererseits berichtet. Die Acidität der Carboxygruppe korreliert invers zum mittleren Abstand zwischen anionischem Ladungszentrum und Anhydroglucosering. Ein signifikanter Einfluß der Regioselektivität der Substitution auf die Symplexbildung besteht offensichtlich nicht.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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