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Influence of morphological and conformational changes on the molecular mobility in poly(ethylene naphthalene-2,6-dicarboxylate)

Colombini, Didier LU ; Zouzou, N and Martinez-Vega, JJ (2004) In Macromolecular Symposia 212. p.479-484
Abstract
Dynamic electric (DEA) and mechanical (DMA) analyses were combined to explore the relaxational processes in amorphous and semicrystalline poly(ethylene naphthalene-2,6-dicarboxylate) (PEN) samples. Differential scanning calorimetry measurements were carried out to investigate the crystallinity of the samples following isothermal annealing treatment at 443 K. The two secondary relaxations beta and beta*, the main alpha relaxation, as well as the rho-relaxational process, were revealed by both electric and mechanical viscoelastic responses of the PEN samples. DMA results clearly identified the above T-alpha loss factor peak, rho, as a probe of the cold crystallization. However, the association of both DMA and DEA investigations pointed out... (More)
Dynamic electric (DEA) and mechanical (DMA) analyses were combined to explore the relaxational processes in amorphous and semicrystalline poly(ethylene naphthalene-2,6-dicarboxylate) (PEN) samples. Differential scanning calorimetry measurements were carried out to investigate the crystallinity of the samples following isothermal annealing treatment at 443 K. The two secondary relaxations beta and beta*, the main alpha relaxation, as well as the rho-relaxational process, were revealed by both electric and mechanical viscoelastic responses of the PEN samples. DMA results clearly identified the above T-alpha loss factor peak, rho, as a probe of the cold crystallization. However, the association of both DMA and DEA investigations pointed out that electric and non-electric aspects might govern the rho-process. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
analysis, dynamic mechanical, cold crystallization, dynamic electric analysis, p-relaxation, PEN
in
Macromolecular Symposia
volume
212
pages
479 - 484
publisher
John Wiley & Sons
external identifiers
  • wos:000222586600062
  • scopus:4644280624
ISSN
1521-3900
DOI
10.1002/masy.200450861
language
English
LU publication?
yes
id
36f6af7f-249f-4717-8e80-f4dc3efc04da (old id 272738)
date added to LUP
2007-10-19 15:52:26
date last changed
2017-01-01 05:19:40
@article{36f6af7f-249f-4717-8e80-f4dc3efc04da,
  abstract     = {Dynamic electric (DEA) and mechanical (DMA) analyses were combined to explore the relaxational processes in amorphous and semicrystalline poly(ethylene naphthalene-2,6-dicarboxylate) (PEN) samples. Differential scanning calorimetry measurements were carried out to investigate the crystallinity of the samples following isothermal annealing treatment at 443 K. The two secondary relaxations beta and beta*, the main alpha relaxation, as well as the rho-relaxational process, were revealed by both electric and mechanical viscoelastic responses of the PEN samples. DMA results clearly identified the above T-alpha loss factor peak, rho, as a probe of the cold crystallization. However, the association of both DMA and DEA investigations pointed out that electric and non-electric aspects might govern the rho-process.},
  author       = {Colombini, Didier and Zouzou, N and Martinez-Vega, JJ},
  issn         = {1521-3900},
  keyword      = {analysis,dynamic mechanical,cold crystallization,dynamic electric analysis,p-relaxation,PEN},
  language     = {eng},
  pages        = {479--484},
  publisher    = {John Wiley & Sons},
  series       = {Macromolecular Symposia},
  title        = {Influence of morphological and conformational changes on the molecular mobility in poly(ethylene naphthalene-2,6-dicarboxylate)},
  url          = {http://dx.doi.org/10.1002/masy.200450861},
  volume       = {212},
  year         = {2004},
}