Synthèse et propriétés d'oligomères dièniques partiellement et totalement hydrogénés

Authors

  • Yves Camberlin,

    1. Laboratoire des Matériaux Macromoléculaires, Bǎtiment 403 ERA CNRS 745, Institut National des Sciences Appliquées, 20, Avenue Albert Einstein, F 69621 Villeurbanne, France
    Search for more papers by this author
  • Jean Golé,

    1. Laboratoire des Matériaux Macromoléculaires, Bǎtiment 403 ERA CNRS 745, Institut National des Sciences Appliquées, 20, Avenue Albert Einstein, F 69621 Villeurbanne, France
    Search for more papers by this author
  • Jean Pierre Pascault,

    Corresponding author
    1. Laboratoire des Matériaux Macromoléculaires, Bǎtiment 403 ERA CNRS 745, Institut National des Sciences Appliquées, 20, Avenue Albert Einstein, F 69621 Villeurbanne, France
    • Laboratoire des Matériaux Macromoléculaires, Bǎtiment 403 ERA CNRS 745, Institut National des Sciences Appliquées, 20, Avenue Albert Einstein, F 69621 Villeurbanne, France
    Search for more papers by this author
  • Jean Pierre Durand,

    1. Laboratoire de Chimie Macromoléculaire, Institut Français du Pétrole, 1–4, Avenue de Bois Préau, F 92506 Rueil-Malmaison, France
    Search for more papers by this author
  • François Dawans

    1. Laboratoire de Chimie Macromoléculaire, Institut Français du Pétrole, 1–4, Avenue de Bois Préau, F 92506 Rueil-Malmaison, France
    Search for more papers by this author

Abstract

Hydrogenations of several hydroxy-terminated low molecular weight polybutadienes (PB) or non functional PB and one polyisoprene by homogeneous catalysis were studied. Hydrogenation of 1,4-polybutadienes gave solid crystalline polymers. In the case of hydrogenated 1,2-polymers a decrease of the glass transition temperature was noted, the hydrogenation leading to amorphous polymers. The rheological behaviour of oligomers was found to be Newtonian at low shear rates (≤ 100 s−1). The viscosity at Tg+100°C increased in every case with the hydrogenation rate. It was found that hydrogen bonding induced by hydroxyl groups has a great effect on the glass transition temperature but does not change the viscosity at Tg + 100°C.

Ancillary