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Local Aspects of Non-Elastic Deformation in Atactic Glassy Polystyrene

Published online by Cambridge University Press:  26 February 2011

G. Coulon ,
J. M. Lefebvre  and
M. Rawiso
G. Coulon
Affiliation:
USTL-FA, Laboratoire de Structure et Propriétés de l'Etat SolideBât.C6-59655 VILLENEUVE D'ASCQ CEDEX, FRANCE.
J. M. Lefebvre
Affiliation:
USTL-FA, Laboratoire de Structure et Propriétés de l'Etat SolideBât.C6-59655 VILLENEUVE D'ASCQ CEDEX, FRANCE.
M. Rawiso
Affiliation:
Institut Laüe-LangevinBP 156X -38042 GRENOBLE CEDEX, FRANCE.
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Abstract

Atactic glassy polystyrene has been deformed by shear banding. The influence of the macroscopic shear stress down to a scale smaller than the dimensions of the macromolecules has been investigated by small-angle neutron scattering. The chemical resolution has been improved by using isotopic labelling on different parts of the monomer unit. The analysis of the experimental scattering curves has been made according to the thin thread model with a superimposed thickness. On the other hand, the contrast variation method has been applied in order to determine both the structure factor of the phenyl rings and that of the backbone part of the chain. This allows us to precise the influence of non-elastic deformation on the local structure of the chain.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 79: Symposium F – Scattering, Deformation and Fracture in Polymers , 1986 , 251
Copyright
Copyright © Materials Research Society 1987

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References

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