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  • 1960-1964  (3)
  • 1935-1939
  • 1920-1924
  • 1900-1904
  • 1880-1889
  • Polymer and Materials Science  (3)
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Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    A simple polymer fractionation method (1961)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 49 (1961), S. S2 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1961.1204915234
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Zone-refining fractionation of polymers (1963)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 1 (1963), S. 3163-3173 
    Details
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The unidirectional freezing of dilute solutions of polystyrene in benzene yields a frozen charge with a high concentration gradient, low in the first part frozen and highest in the last. A substantial heterogeneity in molecular weights is also noted, the highest molecular weight being found in the first part and progressively lower molecular weights toward the terminal end of the charge. Both concentration and molecular weight changes are strongly dependent upon freezing rate, low rates favoring maximum concentration changes and intermediate rates favoring maximum molecular weight separation. The application of these observations to a polymer fractionation system is reported.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1963.100011011
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Preparation and biological application of highly substituted cationic derivatives of polysaccharides (1963)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 1 (1963), S. 3511-3517 
    Details
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A general procedure is presented for the preparation of diethylaminohydroxylpropyl ethers of polysaccharides. This involves reaction between various ratios of 1-diethylamino-2,3-epoxypropane and the polysaccharide (amylose, amylopectin, dextran, and a chemically synthesized polygalactose) and concentrated aqueous solution of sodium carbonate. These ratios control the degree of substitution, and give as high as 1.4 cationic groups per monosaccharide unit in the case of certain polysaccharides. The cationic polysaccharides possess high hemagglutinating activity which is proportional to the degree of substitution. Other biological applications are reviewed.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1963.100011120
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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