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Dynamics of permanent and temporary networks: Small angle neutron scattering measurements and related remarks on the classical models of rubber deformation

  • F. Boué
  • J. Bastide
  • M. Buzier
  • C. Collette
  • A. Lapp
  • J. Herz
Transient Networks
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 75)

Abstract

We observed the neutron scattering of mixtures of deuterated and normal polystyrene in bulk for samples (strips) undergoing a stress relaxation after a step-strain. Some samples were just melt (i.e. molten at T > Tg=100°C), others were crosslinked and thus some were rubbers at T > Tg. The scattering measured at different times elapsed after the step-strain gives access to the dynamics at the submolecular scale (300-10 A). It is compared with the theoretical predictions that one may extract from the classical models. Observed discrepancies are tentatively interpreted following several “remarks” on the topology of the network and the possible mechanisms of deformation at the corresponding scales.

Key words

Polymer networks rubber de formation small angle neutron scattering dynamics relaxation polystyrene crosslinking 

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Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1987

Authors and Affiliations

  • F. Boué
    • 1
  • J. Bastide
    • 1
    • 2
  • M. Buzier
    • 1
  • C. Collette
    • 3
  • A. Lapp
    • 1
    • 2
  • J. Herz
    • 2
  1. 1.CEN-SaclayLaboratoire Léon BrillouinGif-sur-YvetteFrance
  2. 2.Institut Charles Sadron, C.R.M.StrasbourgFrance
  3. 3.Laboratoire de Physico-Chimie MacromoléculaireEcole Supérieure de Physique et ChimieParisFrance

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