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  • 1
    Electronic Resource
    Electronic Resource
    Durch Polymere induzierte Aggregation von Farbstoffmolekülen (1977)
    Springer
    Colloid & polymer science 255 (1977), S. 821-821 
    Details
    ISSN: 1435-1536
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01664547
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  • 2
    Electronic Resource
    Electronic Resource
    Synthesis of New Polyaddition Polymers (1971)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 313 (1971), S. 546-560 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Russian Abstract.
    Abstract: An Hand von Beispielen werden verschiedene Verfahren zur Synthese von neuen Polyadditionspolymeren dargestellt. Im einzelnen werden folgende Verfahren diskutiert: - die 1,3-dipolare Polyaddition- die Dimerisierung von Bisdiazoalkanen und die Polymerisation von Diazoalkanderivaten- photochemische Polycycloaddition
    Notes: Different methods for the synthesis of new polyaddition polymers are considered and illustrated on the basis of original examples.The following methods will be successively discussed: -1,3 dipolar polyadditions-dimerization of bisdiazoalkanes and polymerization of diazoalkane derivatives-photochemical polycycloaddition
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19713130313
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  • 3
    Electronic Resource
    Electronic Resource
    Influence of rigid polymer matrices on the reversible photochemical reaction of α-p-dimethylaminophenyl-N-m-nitrophenylnitrone (1976)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 14 (1976), S. 2983-2994 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The thermally reversible photocyclization of α-p-dimethylaminophenyl-N-m-nitrophenylnitrone (I) to the corresponding oxaziridine (II) was studied in solution and in rigid polymer matrices. Irradiation with light of wavelength above 380 nm causes a clean transformation of (I) to (II) in solution as well as in polymer matrices. The quantum yield of the photoreaction in solution is about 0.06, the value being almost independent of the nature of the solvent and the irradiation time. In poly-(methyl methacrylate) (PMMA) and in polystyrene (PSt) films, the photocyclization shows initial quantum yields of 0.1 and 0.23, respectively, which decrease with irradiation time. In solution in the dark, II reverted mainly to I with formation of side product(s) in a first-order reaction. The recovery of I during the dark reaction (60-90%) as well as the rate constant of the reaction are strongly affected by the solvent. The kinetics of the thermal return in the two polymer matrices does not follow the first-order rate law. The initial reaction rate as well as the extent of the recovery of I in PMMA film are greater than those in ethyl acetate.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1976.170141212
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