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  • Wiley-Blackwell  (2)
  • 1975-1979  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Radical polymerization in the presence of complexing agents. II. Copolymerization of methyl methacrylate-allyl methacrylate in the presence of zinc chloride (1977)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 62 (1977), S. 91-99 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die radikalische Copolymerisation von Methylmethacrylat (MMA) und Allylmethacrylat (AMA) wurde studiert. Die Reaktionen wurden mit Azoisobutyronitril (AIBN) in Anwesenheit von ZnCl2 initiiert. Mit zunehmender ZnCl2-Konzentration nimmt die Copolymerisationsgeschwindigkeit zu, und die Copolymerisationsparameter bleiben nicht konstant. MMA und AMA bilden EDA-Komplexe mit ZnCl2. Diese Komplexbildung erklärt unsere Ergebnisse.
    Notes: Radical copolymerization of methyl methacrylate (MMA)-allyl methacrylate (AMA) in the presence of zinc chloride, using azoisobutyronitrile (AIBN) as initiator has been carried out. The copolymerization rate increases with the concentration of ZnCl2 and the reactivity ratios are modified by the concentration of ZnCl2 which is explained by the different tendency towards the formation of complexes between MMA and AMA with ZnCl2.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1977.050620108
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  • 2
    Electronic Resource
    Electronic Resource
    Impregnated concrete. I: Characterization of poly (methyl methacrylate) prepared in concrete matrices (1979)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 19 (1979), S. 825-828 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Concrete specimens were impregnated with methyl methacrylate and after polymerization in situ, the extraction of polymer was carried out using appropriate solvents. The molecular weight and the stereochemical configuration of extracted polymer were determined by viscosity measurements and NMR spectroscopy respectively. The results obtained are discussed in relation to the increase of glass transition temperature of poly(methyl methacrylate) when the polymer is inside the concrete.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760191202
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    Paper (German National Licenses)
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