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  • 1
    Electronic Resource
    Electronic Resource
    Proton exchange in 1-vinyl-1,2,4-triazole and its derivatives (1987)
    Springer
    Chemistry of heterocyclic compounds 23 (1987), S. 1094-1097 
    Details
    ISSN: 1573-8353
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Proton exchange at C(5) of the triazole ring has been studied in 1-vinyl-1,2,4-triazole, 1-ethyl-1,2,4-triazole, poly-1-vinyl-1,2,4-triazole, and their quaternary salts. The rate of exchange is catalyzed by bases and inhibited by acids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00476540
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  • 2
    Electronic Resource
    Electronic Resource
    Stationary copolymerization of formaldehyde and 1,3-dioxolan (1974)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 12 (1974), S. 1881-1886 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A. study on the kinetics of gas-phase copolymerization of formaldehyde and 1,3-dioxolan effected by stannic chloride in a flow reactor with ideal mixing is reported. Equations were calculated describing the run of process depending on the composition of the outgoing flow measured with a gas chromatograph. It was established that the reaction takes place under stationary conditions. The change of the degree of conversion of monomers, and composition of the stable portion of the copolymer, and copolymer molecular weight with catalyst concentration was examined. It was shown that a kinetic and diffusion area may be possible. A product of high molecular weight and thermostability was obtained. The molecular size distribution was ascertained to be close to the exponential type. The average number of blocks and units of both monomers was calculated. Different posteffects for the two reacting substances were found.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1974.170120902
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    Paper (German National Licenses)
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