Observation of a fast dielectric relaxation in semi-crystalline poly(ethylene oxide)

Xing Jin, Shihai Zhang, James Patrick Runt

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

Our broadband dielectric study has revealed for the first time a relaxation (termed γ′) between the low temperature β and γ-processes of semi-crystalline poly(ethylene oxide) (PEO). The activation energy of the γ′-transition is indicative of a local process, and this relaxation becomes broader with increasing temperature. We propose that this process is due to the motion of PEO segments in the transition region between PEO lamellae and disordered interlamellar amorphous segments. The unusual local character of the γ′-process is explained by analogy to the fast process or primitive α-relaxation in nanoconfined glass forming systems. This mechanism is supported by comparison of the dielectric behavior of samples with different thermal histories.

Original languageEnglish (US)
Pages (from-to)6247-6254
Number of pages8
JournalPolymer
Volume43
Issue number23
DOIs
StatePublished - Sep 27 2002

Fingerprint

Dielectric relaxation
Polyethylene oxides
Crystalline materials
Activation energy
Glass
Temperature

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics

Cite this

Jin, Xing ; Zhang, Shihai ; Runt, James Patrick. / Observation of a fast dielectric relaxation in semi-crystalline poly(ethylene oxide). In: Polymer. 2002 ; Vol. 43, No. 23. pp. 6247-6254.
@article{218ccbc1cebc40e48594d527fa8b68d7,
title = "Observation of a fast dielectric relaxation in semi-crystalline poly(ethylene oxide)",
abstract = "Our broadband dielectric study has revealed for the first time a relaxation (termed γ′) between the low temperature β and γ-processes of semi-crystalline poly(ethylene oxide) (PEO). The activation energy of the γ′-transition is indicative of a local process, and this relaxation becomes broader with increasing temperature. We propose that this process is due to the motion of PEO segments in the transition region between PEO lamellae and disordered interlamellar amorphous segments. The unusual local character of the γ′-process is explained by analogy to the fast process or primitive α-relaxation in nanoconfined glass forming systems. This mechanism is supported by comparison of the dielectric behavior of samples with different thermal histories.",
author = "Xing Jin and Shihai Zhang and Runt, {James Patrick}",
year = "2002",
month = "9",
day = "27",
doi = "10.1016/S0032-3861(02)00560-8",
language = "English (US)",
volume = "43",
pages = "6247--6254",
journal = "Polymer",
issn = "0032-3861",
publisher = "Elsevier BV",
number = "23",

}

Observation of a fast dielectric relaxation in semi-crystalline poly(ethylene oxide). / Jin, Xing; Zhang, Shihai; Runt, James Patrick.

In: Polymer, Vol. 43, No. 23, 27.09.2002, p. 6247-6254.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Observation of a fast dielectric relaxation in semi-crystalline poly(ethylene oxide)

AU - Jin, Xing

AU - Zhang, Shihai

AU - Runt, James Patrick

PY - 2002/9/27

Y1 - 2002/9/27

N2 - Our broadband dielectric study has revealed for the first time a relaxation (termed γ′) between the low temperature β and γ-processes of semi-crystalline poly(ethylene oxide) (PEO). The activation energy of the γ′-transition is indicative of a local process, and this relaxation becomes broader with increasing temperature. We propose that this process is due to the motion of PEO segments in the transition region between PEO lamellae and disordered interlamellar amorphous segments. The unusual local character of the γ′-process is explained by analogy to the fast process or primitive α-relaxation in nanoconfined glass forming systems. This mechanism is supported by comparison of the dielectric behavior of samples with different thermal histories.

AB - Our broadband dielectric study has revealed for the first time a relaxation (termed γ′) between the low temperature β and γ-processes of semi-crystalline poly(ethylene oxide) (PEO). The activation energy of the γ′-transition is indicative of a local process, and this relaxation becomes broader with increasing temperature. We propose that this process is due to the motion of PEO segments in the transition region between PEO lamellae and disordered interlamellar amorphous segments. The unusual local character of the γ′-process is explained by analogy to the fast process or primitive α-relaxation in nanoconfined glass forming systems. This mechanism is supported by comparison of the dielectric behavior of samples with different thermal histories.

UR - http://www.scopus.com/inward/record.url?scp=0037183851&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037183851&partnerID=8YFLogxK

U2 - 10.1016/S0032-3861(02)00560-8

DO - 10.1016/S0032-3861(02)00560-8

M3 - Article

VL - 43

SP - 6247

EP - 6254

JO - Polymer

JF - Polymer

SN - 0032-3861

IS - 23

ER -