Segmental dynamics in polymer electrolytes

A. Triolo; F. Lo Celso; S. Passerini; V. Arrighi; R. E. Lechner; B. Frick; R. Triolo

doi:10.1007/s003390201882

Segmental dynamics in polymer electrolytes

A. Triolo, F. Lo Celso, S. Passerini, V. Arrighi, R. E. Lechner, B. Frick, R. Triolo

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Polymer dynamics in poly(ethylene oxide) (PEO)-salt mixtures is investigated by means of quasi-elastic neutron scattering (QENS). In a previous study, we reported QENS data from the NEAT spectrometer (BENSC) that evidenced, for the first time, a dynamic heterogeneity in PEO-salt mixtures induced by salt addition. This finding is supported by molecular dynamics (MD) simulations carried out by Borodin et al. In agreement with MD simulations, our QENS data revealed two distinct processes: a fast motion corresponding to the bulk polymer and a slower relaxation, which we attribute to formation of PEO-cation complexes. In this paper we present new QENS data from the high-resolution spectrometer IN16 that further support MD simulations as well as our previous data interpretation.

Original language	English
Pages (from-to)	S493-S495
Journal	Applied Physics A: Materials Science and Processing
Volume	74
Issue number	SUPPL.I
DOIs	https://doi.org/10.1007/s003390201882
Publication status	Published - Dec 2002

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title = "Segmental dynamics in polymer electrolytes",

abstract = "Polymer dynamics in poly(ethylene oxide) (PEO)-salt mixtures is investigated by means of quasi-elastic neutron scattering (QENS). In a previous study, we reported QENS data from the NEAT spectrometer (BENSC) that evidenced, for the first time, a dynamic heterogeneity in PEO-salt mixtures induced by salt addition. This finding is supported by molecular dynamics (MD) simulations carried out by Borodin et al. In agreement with MD simulations, our QENS data revealed two distinct processes: a fast motion corresponding to the bulk polymer and a slower relaxation, which we attribute to formation of PEO-cation complexes. In this paper we present new QENS data from the high-resolution spectrometer IN16 that further support MD simulations as well as our previous data interpretation.",

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T1 - Segmental dynamics in polymer electrolytes

AU - Triolo, A.

AU - Lo Celso, F.

AU - Passerini, S.

AU - Arrighi, V.

AU - Lechner, R. E.

AU - Frick, B.

AU - Triolo, R.

PY - 2002/12

Y1 - 2002/12

N2 - Polymer dynamics in poly(ethylene oxide) (PEO)-salt mixtures is investigated by means of quasi-elastic neutron scattering (QENS). In a previous study, we reported QENS data from the NEAT spectrometer (BENSC) that evidenced, for the first time, a dynamic heterogeneity in PEO-salt mixtures induced by salt addition. This finding is supported by molecular dynamics (MD) simulations carried out by Borodin et al. In agreement with MD simulations, our QENS data revealed two distinct processes: a fast motion corresponding to the bulk polymer and a slower relaxation, which we attribute to formation of PEO-cation complexes. In this paper we present new QENS data from the high-resolution spectrometer IN16 that further support MD simulations as well as our previous data interpretation.

AB - Polymer dynamics in poly(ethylene oxide) (PEO)-salt mixtures is investigated by means of quasi-elastic neutron scattering (QENS). In a previous study, we reported QENS data from the NEAT spectrometer (BENSC) that evidenced, for the first time, a dynamic heterogeneity in PEO-salt mixtures induced by salt addition. This finding is supported by molecular dynamics (MD) simulations carried out by Borodin et al. In agreement with MD simulations, our QENS data revealed two distinct processes: a fast motion corresponding to the bulk polymer and a slower relaxation, which we attribute to formation of PEO-cation complexes. In this paper we present new QENS data from the high-resolution spectrometer IN16 that further support MD simulations as well as our previous data interpretation.

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JO - Applied Physics A: Materials Science and Processing

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Segmental dynamics in polymer electrolytes

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