Molecular Mobility, Phase Transitions, Transformation Plasticity and Memory Effect in Poly (tetrafluoroethylene) (PTFE) L. David, C. Sachot, G. Guenin et J. Perez J. Phys. IV France, 06 C8 (1996) C8-421-C8-424 DOI: 10.1051/jp4:1996891