None-Affine Multiaxial Deformation of Polymer Networks

POSTER

Abstract

We develop a theory of multiaxial deformation of polymer network based on the non-affine slip-tube model of rubber elasticity. The effect of entanglements on a network strand is represented through a constraining potential (tube), which changes with network deformation. In addition, the stored length of network chains is allowed to redistribute between different directions along the contour of the tube upon multiaxial deformation. The dependence of stress on strain is calculated and compared with experimental data.

*We would like to acknowledge financial support from the National Science Foundation under the grant DMR-0907515.

Authors

  • Nikolay Oskolkov

    • Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599-3290, USA

  • Sergey Panyukov

    • P. N. Lebedev Physics Institute, Russian Academy of Sciences, 117924 Moscow, Russia
    • P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow 117924, Russia

  • Michael Rubinstein

    • Department of Chemistry, The University of North Carolina, Chapel Hill, NC 27599
    • University of North Carolina
    • University of North Carolina at Chapel Hill
    • Department of Chemistry, The University of North Carolina at Chapel Hill, NC 27599-3290
    • Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599-3290, USA
    • UNC Chapel Hill