Surface enrichment in polystyrene/poly(vinyl methyl ether) blends. 3. An analysis of the near-surface composition profile

J. M G Cowie; B. G. Devlin; I. J. McEwen

Surface enrichment in polystyrene/poly(vinyl methyl ether) blends. 3. An analysis of the near-surface composition profile

J. M G Cowie, B. G. Devlin, I. J. McEwen

School of Engineering & Physical Sciences

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31 Citations (Scopus)

Abstract

An expression is developed to express experimental ATR infrared absorbance ratios arising from surface enrichment in poly(vinyl methyl ether) (PVME)/polystyrene (PS) blends. Blend surfaces are enriched with PVME, which has the lower surface energy, and are found to have a characteristic depth of order 0.25 × 10^-6 m. The effect of stabilizing the blends by hydrogen bonding leads to a reduction in surface enrichment. The surface excess is also calculated using a simplified mean-field approach, and these are compared with experiment. The limitations of ATR spectroscopy for surface studies are highlighted. © 1993 American Chemical Society.

Original language	English
Pages (from-to)	5628-5632
Number of pages	5
Journal	Macromolecules
Volume	26
Issue number	21
Publication status	Published - 1993

Cite this

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title = "Surface enrichment in polystyrene/poly(vinyl methyl ether) blends. 3. An analysis of the near-surface composition profile",

abstract = "An expression is developed to express experimental ATR infrared absorbance ratios arising from surface enrichment in poly(vinyl methyl ether) (PVME)/polystyrene (PS) blends. Blend surfaces are enriched with PVME, which has the lower surface energy, and are found to have a characteristic depth of order 0.25 × 10-6 m. The effect of stabilizing the blends by hydrogen bonding leads to a reduction in surface enrichment. The surface excess is also calculated using a simplified mean-field approach, and these are compared with experiment. The limitations of ATR spectroscopy for surface studies are highlighted. {\textcopyright} 1993 American Chemical Society.",

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journal = "Macromolecules",

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AU - Cowie, J. M G

AU - Devlin, B. G.

AU - McEwen, I. J.

PY - 1993

Y1 - 1993

N2 - An expression is developed to express experimental ATR infrared absorbance ratios arising from surface enrichment in poly(vinyl methyl ether) (PVME)/polystyrene (PS) blends. Blend surfaces are enriched with PVME, which has the lower surface energy, and are found to have a characteristic depth of order 0.25 × 10-6 m. The effect of stabilizing the blends by hydrogen bonding leads to a reduction in surface enrichment. The surface excess is also calculated using a simplified mean-field approach, and these are compared with experiment. The limitations of ATR spectroscopy for surface studies are highlighted. © 1993 American Chemical Society.

AB - An expression is developed to express experimental ATR infrared absorbance ratios arising from surface enrichment in poly(vinyl methyl ether) (PVME)/polystyrene (PS) blends. Blend surfaces are enriched with PVME, which has the lower surface energy, and are found to have a characteristic depth of order 0.25 × 10-6 m. The effect of stabilizing the blends by hydrogen bonding leads to a reduction in surface enrichment. The surface excess is also calculated using a simplified mean-field approach, and these are compared with experiment. The limitations of ATR spectroscopy for surface studies are highlighted. © 1993 American Chemical Society.

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M3 - Article

SN - 0024-9297

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JO - Macromolecules

JF - Macromolecules

IS - 21

ER -

Surface enrichment in polystyrene/poly(vinyl methyl ether) blends. 3. An analysis of the near-surface composition profile

Abstract

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