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Origin of additional mechanical transitions in multicomponent polymeric materials

Colombini, Didier LU and Maurer, Frans LU (2002) In Macromolecules 35(15). p.5891-5902
Abstract
The viscoelastic properties of several multicomponent materials (including both particulate multipolymeric materials and multilayer polymer blends) were investigated in relation to their microstructures and phase-property dependencies. Theoretical considerations based on mechanical modeling were used to explore the origin of additional mechanical transitions in experimental viscoelastic spectra. The major part of this work was devoted to particulate multicomponent systems, and especially to the further exploration of the characteristics of the so-called micromechanical transition (MMT). Although such an additional phenomenon is clearly explained as a result of a specific interphase, our investigation also provides evidence that the... (More)
The viscoelastic properties of several multicomponent materials (including both particulate multipolymeric materials and multilayer polymer blends) were investigated in relation to their microstructures and phase-property dependencies. Theoretical considerations based on mechanical modeling were used to explore the origin of additional mechanical transitions in experimental viscoelastic spectra. The major part of this work was devoted to particulate multicomponent systems, and especially to the further exploration of the characteristics of the so-called micromechanical transition (MMT). Although such an additional phenomenon is clearly explained as a result of a specific interphase, our investigation also provides evidence that the occurrence of a MMT in dynamic mechanical spectra reflects the contribution of the geometrical arrangement into phases of a set of properties of the pure components, rather than a molecular relaxational process within the interfacial area. Finally, on the basis of an equivalent approach, the influence of the geometrical arrangement of phases on the viscoelastic response of multilayer polymer blends was pointed out as a relevant argument to justify the existence of "spurious" additional damping peaks in some experimental dynamic mechanical spectra reported in the literature. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Macromolecules
volume
35
issue
15
pages
5891 - 5902
publisher
The American Chemical Society
external identifiers
  • wos:000176814600027
  • scopus:0037118833
ISSN
0024-9297
DOI
10.1021/ma020266l
language
English
LU publication?
yes
id
1089b3b1-fbf4-4895-b513-72d23f74fddf (old id 333660)
date added to LUP
2007-08-14 16:32:53
date last changed
2017-09-10 03:34:26
@article{1089b3b1-fbf4-4895-b513-72d23f74fddf,
  abstract     = {The viscoelastic properties of several multicomponent materials (including both particulate multipolymeric materials and multilayer polymer blends) were investigated in relation to their microstructures and phase-property dependencies. Theoretical considerations based on mechanical modeling were used to explore the origin of additional mechanical transitions in experimental viscoelastic spectra. The major part of this work was devoted to particulate multicomponent systems, and especially to the further exploration of the characteristics of the so-called micromechanical transition (MMT). Although such an additional phenomenon is clearly explained as a result of a specific interphase, our investigation also provides evidence that the occurrence of a MMT in dynamic mechanical spectra reflects the contribution of the geometrical arrangement into phases of a set of properties of the pure components, rather than a molecular relaxational process within the interfacial area. Finally, on the basis of an equivalent approach, the influence of the geometrical arrangement of phases on the viscoelastic response of multilayer polymer blends was pointed out as a relevant argument to justify the existence of "spurious" additional damping peaks in some experimental dynamic mechanical spectra reported in the literature.},
  author       = {Colombini, Didier and Maurer, Frans},
  issn         = {0024-9297},
  language     = {eng},
  number       = {15},
  pages        = {5891--5902},
  publisher    = {The American Chemical Society},
  series       = {Macromolecules},
  title        = {Origin of additional mechanical transitions in multicomponent polymeric materials},
  url          = {http://dx.doi.org/10.1021/ma020266l},
  volume       = {35},
  year         = {2002},
}