1999
DOI: 10.1016/s0921-4526(98)01507-5
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Modelling of segmental dynamics in polymer electrolyte PPO-LiClO4, by surface fitting of quasi-elastic neutron scattering data

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Cited by 17 publications
(16 citation statements)
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“…The log of the relaxation times agrees within 10% with the previous results of Ref. (20). The unphysical increase of the relaxation time in that study is, however, here replaced by the expected decrease, making the present results more reliable.…”
Section: Discussionsupporting
confidence: 91%
See 1 more Smart Citation
“…The log of the relaxation times agrees within 10% with the previous results of Ref. (20). The unphysical increase of the relaxation time in that study is, however, here replaced by the expected decrease, making the present results more reliable.…”
Section: Discussionsupporting
confidence: 91%
“…Both motion types have to be taken into account to get consistent results. The results of a first attempt to use the model for PPO data in a limited temperature range were previously reported (20).…”
Section: Introductionmentioning
confidence: 91%
“…In harmony with an equal amount of M and B deuterons in the monomeric unit of the studied polymer, we obtain coefficients a M Ϸ a B Ϸ 0.5 from these fits. 43,44 This study reported an activation energy of 17 kJ/ mol. 2, we see that the spin-lattice relaxation time T 1 M decreases upon cooling, indicating 0 Ӷ 1 for the methyl group jumps at the studied temperatures.…”
Section: -4mentioning
confidence: 89%
“…Polyethylene oxide (PEO), polypropylene oxide (PPO), and 4 poly[bis(methoxy-ethoxyethoxy) phosphazene] (MEEP) are all promising Type I polymer electrolytes. [12][13][14][15][16] The electron-donating groups incorporated into the polymer architecture are responsible for solvating the lithium ion while the fast segmental dynamics promote high ionic conductivities through fluctuation-driven diffusion. [17][18][19] However, Type I polymer electrolytes typically suffer from poor mechanical properties, which is an unfortunate compromise for the fast segmental dynamics.…”
Section: The 21mentioning
confidence: 99%