Molecular mobility and protonic conductivity studies in telechelics based on poly(ethylene oxide) capped with hydroxyl groups at both ends

G. Polizos; V. V. Shilov; P. Pissis

doi:10.1016/S0167-2738(01)00918-3

Molecular mobility and protonic conductivity studies in telechelics based on poly(ethylene oxide) capped with hydroxyl groups at both ends

G. Polizos, V. V. Shilov, P. Pissis

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

Model functionalized telechelics based on poly(ethylene oxide) (PEO) capped with OH^- groups, with protons (H⁺) in the terminals have been prepared and the effects of structure on molecular mobility and protonic conductivity have been investigated. Molecular mobility and protonic conductivity were measured by means of broadband dielectric relaxation spectroscopy (DRS, 10^-2-10⁹ Hz) and of thermally stimulated depolarisation currents techniques (TSDC, 77-300 K). The features of α relaxation, associated to the glass transition, and of dc conductivity σ_dc, determined from ac conductivity (σ_ac(f)) plots, were analysed in detail. Protonic conductivity was found to be governed by the motion of the polymeric chains.

Original language	English
Pages (from-to)	93-100
Number of pages	8
Journal	Solid State Ionics
Volume	145
Issue number	1-4
DOIs	https://doi.org/10.1016/S0167-2738(01)00918-3
State	Published - Dec 1 2001
Externally published	Yes
Event	10th International Conference on Solid State (SSPC10) - Montpellier, France Duration: Sep 24 2000 → Sep 28 2000

Keywords

Protonic conductivity
Telechelics
α relaxation

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10.1016/S0167-2738(01)00918-3

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title = "Molecular mobility and protonic conductivity studies in telechelics based on poly(ethylene oxide) capped with hydroxyl groups at both ends",

abstract = "Model functionalized telechelics based on poly(ethylene oxide) (PEO) capped with OH- groups, with protons (H+) in the terminals have been prepared and the effects of structure on molecular mobility and protonic conductivity have been investigated. Molecular mobility and protonic conductivity were measured by means of broadband dielectric relaxation spectroscopy (DRS, 10-2-109 Hz) and of thermally stimulated depolarisation currents techniques (TSDC, 77-300 K). The features of α relaxation, associated to the glass transition, and of dc conductivity σdc, determined from ac conductivity (σac(f)) plots, were analysed in detail. Protonic conductivity was found to be governed by the motion of the polymeric chains.",

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TY - JOUR

T1 - Molecular mobility and protonic conductivity studies in telechelics based on poly(ethylene oxide) capped with hydroxyl groups at both ends

AU - Polizos, G.

AU - Shilov, V. V.

AU - Pissis, P.

PY - 2001/12/1

Y1 - 2001/12/1

N2 - Model functionalized telechelics based on poly(ethylene oxide) (PEO) capped with OH- groups, with protons (H+) in the terminals have been prepared and the effects of structure on molecular mobility and protonic conductivity have been investigated. Molecular mobility and protonic conductivity were measured by means of broadband dielectric relaxation spectroscopy (DRS, 10-2-109 Hz) and of thermally stimulated depolarisation currents techniques (TSDC, 77-300 K). The features of α relaxation, associated to the glass transition, and of dc conductivity σdc, determined from ac conductivity (σac(f)) plots, were analysed in detail. Protonic conductivity was found to be governed by the motion of the polymeric chains.

AB - Model functionalized telechelics based on poly(ethylene oxide) (PEO) capped with OH- groups, with protons (H+) in the terminals have been prepared and the effects of structure on molecular mobility and protonic conductivity have been investigated. Molecular mobility and protonic conductivity were measured by means of broadband dielectric relaxation spectroscopy (DRS, 10-2-109 Hz) and of thermally stimulated depolarisation currents techniques (TSDC, 77-300 K). The features of α relaxation, associated to the glass transition, and of dc conductivity σdc, determined from ac conductivity (σac(f)) plots, were analysed in detail. Protonic conductivity was found to be governed by the motion of the polymeric chains.

KW - Protonic conductivity

KW - Telechelics

KW - α relaxation

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U2 - 10.1016/S0167-2738(01)00918-3

DO - 10.1016/S0167-2738(01)00918-3

M3 - Conference article

AN - SCOPUS:0035546049

SN - 0167-2738

VL - 145

SP - 93

EP - 100

JO - Solid State Ionics

JF - Solid State Ionics

IS - 1-4

T2 - 10th International Conference on Solid State (SSPC10)

Y2 - 24 September 2000 through 28 September 2000

ER -

Molecular mobility and protonic conductivity studies in telechelics based on poly(ethylene oxide) capped with hydroxyl groups at both ends

Abstract

Keywords

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