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  • Hydrosilylation  (1)
  • Petals  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Mechanistic studies of platinum-catalyzed hydrosilylation (1991)
    Springer
    Journal of inorganic and organometallic polymers and materials 1 (1991), S. 325-334 
    Details
    ISSN: 1572-8870
    Schlagwort(e): Hydrosilylation ; addition cure ; platinum catalyst
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract The results of competitive and relative rate studies for various silicon hydrides and vinylmethylsiloxane compounds are presented. For example, the competitive reaction of bis(trimethylsiloxy)methylsilane with vinylpentamethyldisiloxane (A) and divinyltetramethyldisiloxane (B) show that B reacts preferentially; however, the relative rate of reaction is greater for A than B. Mechanistic aspects of hydrosilylation are also discussed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00702496
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Some observations on the very rapid abscission of the petals ofGeranium robertianum L. (1983)
    Springer
    Protoplasma 116 (1983), S. 179-186 
    Details
    ISSN: 1615-6102
    Schlagwort(e): Abscission ; Ethylene ; Petals ; Geranium robertianum ; Cell-wall breakdown
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary The petals of young flowers ofGeranium robertianum L. start to be shed 2.25 hours after exposure to 20 ppm ethylene whilst controls kept in air take approximately 8 hours longer. The detachment of the petal takes place at its junction with the receptacle. The cells in the region show evidence of cell wall degradation and fracture takes place by loss of cell cohesion along the line of the middle lamella. The petal base is surrounded by a canal of receptacle tissues which alter shape either during or immediately after fracture. It is proposed that these structural changes may produce stresses which facilitate fracture.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01279836
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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