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  • 1
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 56 (1962), S. 200-207 
    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: Durch Polymerisation von Phenyl- oder n-Butylisocyanat in verschiedenen Lösungsmitteln in Gegenwart anionischer Katalysatoren wie Lithium- oder Natriumalkylen wurden kristalline Polymere erhalten.Für beide Polymere werden die IR-Spektren, die Röntgenbeugungsspektren und andere physikalische Eigenschaften wiedergegeben. Die möglichen Strukturen der beiden kristallinen Polymeren werden diskutiert. Mit kationischen Katalysatoren (z. B. AlBr3) wurden im Fall des Phenylisocyanats amorphe Polymere erhalten, während das n-Butyl-isocyanat keine Polymere lieferte.
    Notes: By polymerizing phenyl or n-butyl isocyanate in various solvents in the presence of anionic catalysts such as lithium or sodium alkyls, crystalline polymers were obtained. For both polymers, the I.R. spectra, the X-ray diffraction spectra and other physical properties are reported. The possible structures of the two crystalline polymers are discussed. By cationic catalysts (e.g. AlBr3) amorphous polymers were obtained from phenylisocyanate, but no polymers from n-butylisocyanate.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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