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  • 1
    Electronic Resource
    Electronic Resource
    Synthesis of 1,4,5,6,7,7-hexachloro- and hexabromobicyclo-[2,2,1]-5-heptene-2-carboxylic acid vinyl esters and copolymerization with acrylonitrile (1967)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-1: Polymer Chemistry 5 (1967), S. 1279-1287 
    Details
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1,4,5,6,7,7-Hexachloro- and hexabromobicyclo-[2,2,1]-5-heptene-2-carboxylic acid vinyl esters have been prepared by esterification of the Diels-Alder addition products of hexachloro- and hexabromocyclopentadiene with acrylic acid. These monomers have been copolymerized with acrylonitrile to yield flame-retardant polymers. Copolymers having a chlorine content up to 18.35% or a bromine content up to 6.35% burn, but copolymers containing 25.0% or more of chlorine or 9.83% or more of bromine do not support combustion.
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1967.150050610
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  • 2
    Electronic Resource
    Electronic Resource
    New synthetic route to α-alkylacrylonitriles and a study of their homopolymerization and copolymerization reactions (1967)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-1: Polymer Chemistry 5 (1967), S. 563-583 
    Details
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aliphatic aldehydes have been condensed with cyanoacetic acid and the resulting olefin intermediates hydrogenated and then submitted to a Mannich-type reaction to produce α-alkylacrylonitriles with the alkyl groups ranging from C1 to C12. It was not necessary to isolate the intermediates when the reactions were carried out in acetonitrile solutions. The α-alkylacrylonitriles with C7 or higher alkyl groups in the chains would polymerize by radical initiation in emulsion to give polymers which were sticky, rubbery products and showed adhesive characteristics. Anionic initiation did not yield polymers with the α-alkylacrylonitriles containing high alkyl groups but did convert the C2 to C4 alkyl-substituted acrylonitriles to low molecular weight colored products. Some copolymers of α-alkylacrylonitriles with acrylonitrile were prepared in emulsion by radical initiation. The monomer ratios in these copolymers were determined by nuclear magnetic resonance spectra.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1967.150050316
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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