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Compatibilizing effects of poly(styrene-graft-ethylene oxide) in blends of polystyrene and butyl acrylate polymers

Jannasch, Patric LU ; Gunnarsson, Omar and Wesslén, Bengt LU (1996) In Journal of Applied Polymer Science 59(4). p.619-626
Abstract
The compatibilizing effect of poly(styrene-graft-ethylene oxide) in polystyrene (PS) blends with poly(n-butyl acrylate) (PBA) and poly(n-butyl acrylate-co-acrylic acid) (PBAAA) was investigated. No significant effects of the graft copolymer on the domain size were found in the PBA blends. By functionalizing PBA with acrylic acid, the average size of the polyacrylate domains was reduced considerably by the graft copolymer. Thermal and dynamic mechanical analysis of the PS/PBAAA blends revealed that the PBAAA glass transition temperature (T-g) decreased with increasing graft copolymer content. The effect of the graft copolymer in the PS/PBAAA blends can be explained by interactions across the interface due to the formation of hydrogen bonds... (More)
The compatibilizing effect of poly(styrene-graft-ethylene oxide) in polystyrene (PS) blends with poly(n-butyl acrylate) (PBA) and poly(n-butyl acrylate-co-acrylic acid) (PBAAA) was investigated. No significant effects of the graft copolymer on the domain size were found in the PBA blends. By functionalizing PBA with acrylic acid, the average size of the polyacrylate domains was reduced considerably by the graft copolymer. Thermal and dynamic mechanical analysis of the PS/PBAAA blends revealed that the PBAAA glass transition temperature (T-g) decreased with increasing graft copolymer content. The effect of the graft copolymer in the PS/PBAAA blends can be explained by interactions across the interface due to the formation of hydrogen bonds between the poly(ethylene oxide) (PEO) side chains in the graft copolymer and the acrylic acid segments in the PBAAA phase. Hydrogen bonding was confirmed by IR analysis of binary blends of PEO and PBAAA. Partial miscibility in the PEO/PBAAA blends was indicated by a PEO melting point depression and by a T-g reduction of the PBAAA phase. The thermal properties of the PEO/PBA blends indicated only very limited miscibility. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Applied Polymer Science
volume
59
issue
4
pages
619 - 626
publisher
John Wiley & Sons
external identifiers
  • scopus:0029777172
ISSN
1097-4628
DOI
10.1002/(SICI)1097-4628(19960124)59:4<619::AID-APP7>3.0.CO;2-W
language
English
LU publication?
yes
id
7cd3ea9d-3c8b-48b1-ad9b-9cfa30658fe4 (old id 149568)
date added to LUP
2007-07-13 12:31:19
date last changed
2017-01-01 05:11:47
@article{7cd3ea9d-3c8b-48b1-ad9b-9cfa30658fe4,
  abstract     = {The compatibilizing effect of poly(styrene-graft-ethylene oxide) in polystyrene (PS) blends with poly(n-butyl acrylate) (PBA) and poly(n-butyl acrylate-co-acrylic acid) (PBAAA) was investigated. No significant effects of the graft copolymer on the domain size were found in the PBA blends. By functionalizing PBA with acrylic acid, the average size of the polyacrylate domains was reduced considerably by the graft copolymer. Thermal and dynamic mechanical analysis of the PS/PBAAA blends revealed that the PBAAA glass transition temperature (T-g) decreased with increasing graft copolymer content. The effect of the graft copolymer in the PS/PBAAA blends can be explained by interactions across the interface due to the formation of hydrogen bonds between the poly(ethylene oxide) (PEO) side chains in the graft copolymer and the acrylic acid segments in the PBAAA phase. Hydrogen bonding was confirmed by IR analysis of binary blends of PEO and PBAAA. Partial miscibility in the PEO/PBAAA blends was indicated by a PEO melting point depression and by a T-g reduction of the PBAAA phase. The thermal properties of the PEO/PBA blends indicated only very limited miscibility.},
  author       = {Jannasch, Patric and Gunnarsson, Omar and Wesslén, Bengt},
  issn         = {1097-4628},
  language     = {eng},
  number       = {4},
  pages        = {619--626},
  publisher    = {John Wiley & Sons},
  series       = {Journal of Applied Polymer Science},
  title        = {Compatibilizing effects of poly(styrene-graft-ethylene oxide) in blends of polystyrene and butyl acrylate polymers},
  url          = {http://dx.doi.org/10.1002/(SICI)1097-4628(19960124)59:4<619::AID-APP7>3.0.CO;2-W},
  volume       = {59},
  year         = {1996},
}