Molecular dynamics of polymers during crystallization as revealed by dielectric spectroscopy

T. A. Ezquerra; J. Majszczyk; F. J. BaltȤ-Calleja; E. L. López-Cabarcos; K. H. Gardner; B. S. Hsiao

doi:10.1088/0031-8949/1994/T55/037

Molecular dynamics of polymers during crystallization as revealed by dielectric spectroscopy

T. A. Ezquerra
, J. Majszczyk
, F. J. BaltȤ-Calleja
, E. L. López-Cabarcos
, K. H. Gardner
, B. S. Hsiao

Chemistry

CSIC - Instituto de Estructura de la Materia (IEM)
University of Szczecin
Complutense University
DuPont

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

6 Scopus citations

Abstract

The change of the α relaxation process occurring during isothermal crystallization of a glassy polymer, poly(aryl ether ketone ketone), has been followed in real time through measurement of the dielectric complex permittivity. The phenomenological Havriliak-Negami description has been used to analyze the changes of the dielectric strength, central relaxation time and shape parameters describing the relaxation, as crystallization proceeds. The evolution of the dielectric magnitudes with crystallization time has been interpreted in the light of the Schönhals-Schlosser model. According to this model, a restriction of the long scale motions of the polymeric chains as the material is filled in with crystals is observed. These results may contribute to the better understanding of dynamics of a glassy polymers during crystallization.

Original language	English
Pages (from-to)	212-215
Number of pages	4
Journal	Physica Scripta
Volume	1994
Issue number	T55
DOIs	https://doi.org/10.1088/0031-8949/1994/T55/037
State	Published - Jan 1 1994

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10.1088/0031-8949/1994/T55/037

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title = "Molecular dynamics of polymers during crystallization as revealed by dielectric spectroscopy",

abstract = "The change of the α relaxation process occurring during isothermal crystallization of a glassy polymer, poly(aryl ether ketone ketone), has been followed in real time through measurement of the dielectric complex permittivity. The phenomenological Havriliak-Negami description has been used to analyze the changes of the dielectric strength, central relaxation time and shape parameters describing the relaxation, as crystallization proceeds. The evolution of the dielectric magnitudes with crystallization time has been interpreted in the light of the Sch{\"o}nhals-Schlosser model. According to this model, a restriction of the long scale motions of the polymeric chains as the material is filled in with crystals is observed. These results may contribute to the better understanding of dynamics of a glassy polymers during crystallization.",

author = "Ezquerra, \{T. A.\} and J. Majszczyk and BaltȤ-Calleja, \{F. J.\} and L{\'o}pez-Cabarcos, \{E. L.\} and Gardner, \{K. H.\} and Hsiao, \{B. S.\}",

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T1 - Molecular dynamics of polymers during crystallization as revealed by dielectric spectroscopy

AU - Ezquerra, T. A.

AU - Majszczyk, J.

AU - BaltȤ-Calleja, F. J.

AU - López-Cabarcos, E. L.

AU - Gardner, K. H.

AU - Hsiao, B. S.

PY - 1994/1/1

Y1 - 1994/1/1

N2 - The change of the α relaxation process occurring during isothermal crystallization of a glassy polymer, poly(aryl ether ketone ketone), has been followed in real time through measurement of the dielectric complex permittivity. The phenomenological Havriliak-Negami description has been used to analyze the changes of the dielectric strength, central relaxation time and shape parameters describing the relaxation, as crystallization proceeds. The evolution of the dielectric magnitudes with crystallization time has been interpreted in the light of the Schönhals-Schlosser model. According to this model, a restriction of the long scale motions of the polymeric chains as the material is filled in with crystals is observed. These results may contribute to the better understanding of dynamics of a glassy polymers during crystallization.

AB - The change of the α relaxation process occurring during isothermal crystallization of a glassy polymer, poly(aryl ether ketone ketone), has been followed in real time through measurement of the dielectric complex permittivity. The phenomenological Havriliak-Negami description has been used to analyze the changes of the dielectric strength, central relaxation time and shape parameters describing the relaxation, as crystallization proceeds. The evolution of the dielectric magnitudes with crystallization time has been interpreted in the light of the Schönhals-Schlosser model. According to this model, a restriction of the long scale motions of the polymeric chains as the material is filled in with crystals is observed. These results may contribute to the better understanding of dynamics of a glassy polymers during crystallization.

UR - https://www.scopus.com/pages/publications/0028740788

U2 - 10.1088/0031-8949/1994/T55/037

DO - 10.1088/0031-8949/1994/T55/037

M3 - Article

AN - SCOPUS:0028740788

SN - 0031-8949

VL - 1994

SP - 212

EP - 215

JO - Physica Scripta

JF - Physica Scripta

IS - T55

ER -

Molecular dynamics of polymers during crystallization as revealed by dielectric spectroscopy

Abstract

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