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.
Confined dynamics in poly(ethylene terephthalate): A coherent and incoherent neutron scattering study / Sanz A.; Nogales A.; Puente-Orench I.; Garcia-Gutierrez M.-C.; Campo J.; Haussler W.; Soccio M.; Lotti N.; Munari A.; Ezquerra T.A.. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - ELETTRONICO. - 549:1(2014), pp. 012011.1-012011.5. [10.1088/1742-6596/549/1/012011]
Confined dynamics in poly(ethylene terephthalate): A coherent and incoherent neutron scattering study
Sanz A.;Soccio M.;Lotti N.;Munari A.;
2014
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
