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IOP Publishing, Journal of Physics: Conference Series, (549), p. 012011, 2014

DOI: 10.1088/1742-6596/549/1/012011

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Confined dynamics in poly(ethylene terephthalate): A coherent and incoherent neutron scattering study

Journal article published in 2014 by Alejandro Sanz, Aurora Nogales, Inés Puente-Orench ORCID, Mari-Cruz García-Gutiérrez, Javier Campo ORCID, Wolfgang Haussler, Michelina Soccio ORCID, Nadia Lotti, Andrea Munari, Tiberio A. Ezquerra
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

We show that the combination of dielectric relaxation with neutron spin echo and incoherent neutron backscattering measurements performed in deuterated and protonated poly(ethylene terephthalate) suggests that the intrinsic dynamics of semicrystalline polymers occurs in an homogeneous scenario, similar to that valid to describe the dynamics of totally amorphous polymers. The quasielastic neutron scattering data are satisfactorily described by a theoretical model that considers that the proton mobility follows a random jump-diffusion in a restricted environment.