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Direct and reverse mechanical modeling of an alkyd acrylic hybrid system: A morphological study

Colombini, Didier LU ; Jowkar Deriss, Mehrnoush LU ; Karlsson, Ola LU and Maurer, Frans LU (2004) In Macromolecules 37(7). p.2596-2602
Abstract
Mechanical modeling and dynamic mechanical analysis were associated to investigate the viscoelastic properties of an alkyd acrylic hybrid system in connection with its morphology, which was characterized by transmission electron microscopy. Theoretical predictions based on the interlayer model used in direct mode were successfully combined with the experimental viscoelastic data to lead to relevant additional information about the complex particulate morphology of the hybrid system. Thus, using direct mechanical modeling, it was concluded that the experimental response of the alkyd acrylic hybrid system to a sinusoidal mechanical stress corresponds to the mechanical response of a sample whose morphology involves a acrylic-rich interphase... (More)
Mechanical modeling and dynamic mechanical analysis were associated to investigate the viscoelastic properties of an alkyd acrylic hybrid system in connection with its morphology, which was characterized by transmission electron microscopy. Theoretical predictions based on the interlayer model used in direct mode were successfully combined with the experimental viscoelastic data to lead to relevant additional information about the complex particulate morphology of the hybrid system. Thus, using direct mechanical modeling, it was concluded that the experimental response of the alkyd acrylic hybrid system to a sinusoidal mechanical stress corresponds to the mechanical response of a sample whose morphology involves a acrylic-rich interphase between continuous and dispersed alkyd-rich domains. For the very first time, the interlayer model was then used in reverse mode in order to separate the actual viscoelastic properties of such a acrylic-rich interphase from those experimentally obtained for the alkyd acrylic hybrid system. The differences in these extracted viscoelastic properties, when compared to those of the pure latex film, were presented as reflecting the changes in the molecular mobility of the macromolecules resulting from the mutual influence of the phases in the multiphase hybrid material. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Macromolecules
volume
37
issue
7
pages
2596 - 2602
publisher
The American Chemical Society
external identifiers
  • wos:000220581700038
  • scopus:1942501137
ISSN
0024-9297
DOI
10.1021/ma030395h
language
English
LU publication?
yes
id
02108083-91cf-4740-b820-32d94b758275 (old id 139527)
date added to LUP
2007-07-13 08:53:16
date last changed
2017-03-19 03:23:39
@article{02108083-91cf-4740-b820-32d94b758275,
  abstract     = {Mechanical modeling and dynamic mechanical analysis were associated to investigate the viscoelastic properties of an alkyd acrylic hybrid system in connection with its morphology, which was characterized by transmission electron microscopy. Theoretical predictions based on the interlayer model used in direct mode were successfully combined with the experimental viscoelastic data to lead to relevant additional information about the complex particulate morphology of the hybrid system. Thus, using direct mechanical modeling, it was concluded that the experimental response of the alkyd acrylic hybrid system to a sinusoidal mechanical stress corresponds to the mechanical response of a sample whose morphology involves a acrylic-rich interphase between continuous and dispersed alkyd-rich domains. For the very first time, the interlayer model was then used in reverse mode in order to separate the actual viscoelastic properties of such a acrylic-rich interphase from those experimentally obtained for the alkyd acrylic hybrid system. The differences in these extracted viscoelastic properties, when compared to those of the pure latex film, were presented as reflecting the changes in the molecular mobility of the macromolecules resulting from the mutual influence of the phases in the multiphase hybrid material.},
  author       = {Colombini, Didier and Jowkar Deriss, Mehrnoush and Karlsson, Ola and Maurer, Frans},
  issn         = {0024-9297},
  language     = {eng},
  number       = {7},
  pages        = {2596--2602},
  publisher    = {The American Chemical Society},
  series       = {Macromolecules},
  title        = {Direct and reverse mechanical modeling of an alkyd acrylic hybrid system: A morphological study},
  url          = {http://dx.doi.org/10.1021/ma030395h},
  volume       = {37},
  year         = {2004},
}