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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 173 (1989), S. 47-53 
    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: Es wurde die Vernetzung von Polyethylen mit Benzo- und Naphtochinonen als Photoinitiatoren untersucht. Die Quantenausbeuten (ϕ) der Initiatorreaktionen in Polyethylen unter UV-Bestrahlung wurden gemessen. Die ϕ-Werte für Benzochinon, Tetrachlorbenzochinon, Tetrabrombenzochinon, Tetrafluorbenzochinon, Naphthochinon und 2,3-Dichlornaphtochinon waren 0,23, 0,18, 0,14, 0,26, 0,09 bzw. 0,11. Naphthochinone waren als Initiatoren zur Photovernetzung von Polyethylen effektiver.
    Notes: Crosslinking of polyethylene (PE) photoinitiated by some benzoquinones and naphthoquinones has been studied. The quantum yields (ϕ) of the initiator reactions in PE under UV irradiation were measured. The ϕ-values for benzoquinone, tetrachlorobenzoquinone, tetrabromobenzoquinone, tetrafluorobenzoquinone, naphthoquinone, and 2,3-dichloronaphthoquinone were equal to 0.23, 0.18, 0.14, 0.26, 0.09, and 0.11, respectively. Naphthoquinones were more effective as initiators in photocrosslinking of polyethylene.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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