Study of polymer film surfaces by EELS using selectively deuterated polystyrene

M.R. Vilar; M. Schott; J.J. Pireaux; C. Grégoire; P.A. Thiry; R. Caudano; A. Lapp; A.M. Botelho do Rego; J.L. Da Silva

Study of polymer film surfaces by EELS using selectively deuterated polystyrene

M.R. Vilar, M. Schott, J.J. Pireaux, C. Grégoire, P.A. Thiry, R. Caudano, A. Lapp, A.M. Botelho do Rego, J.L. Da Silva

Namur Research Institute for Life Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

HREELS spectra of selectively deuterated polystyrene films show loss energies corresponding to the excitation of vibrational modes of the surface region of the organic medium. The thickness of the analyzed surface region can be varied by changing the incident electron energy and/or the scattering geometry. Selective labelling allows to better separate the contributions of main chain and of pendant-groups, and to eliminate the influence of contaminants. It is shown for instance that isotactic and atactic polymer surfaces differ, the former being mainly composed of phenyl rings. End group segregation at the surface may also be important. Multiple losses are much more intense than the corresponding combination modes in IR: the theory of interaction of low energy electrons with polymer films should be further investigated.

Original language	English
Pages (from-to)	927-934
Number of pages	8
Journal	Surface Science
Volume	189-190
Issue number	C
Publication status	Published - 2 Oct 1987

Cite this

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abstract = "HREELS spectra of selectively deuterated polystyrene films show loss energies corresponding to the excitation of vibrational modes of the surface region of the organic medium. The thickness of the analyzed surface region can be varied by changing the incident electron energy and/or the scattering geometry. Selective labelling allows to better separate the contributions of main chain and of pendant-groups, and to eliminate the influence of contaminants. It is shown for instance that isotactic and atactic polymer surfaces differ, the former being mainly composed of phenyl rings. End group segregation at the surface may also be important. Multiple losses are much more intense than the corresponding combination modes in IR: the theory of interaction of low energy electrons with polymer films should be further investigated.",

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T1 - Study of polymer film surfaces by EELS using selectively deuterated polystyrene

AU - Vilar, M.R.

AU - Schott, M.

AU - Pireaux, J.J.

AU - Grégoire, C.

AU - Thiry, P.A.

AU - Caudano, R.

AU - Lapp, A.

AU - Botelho do Rego, A.M.

AU - Da Silva, J.L.

PY - 1987/10/2

Y1 - 1987/10/2

N2 - HREELS spectra of selectively deuterated polystyrene films show loss energies corresponding to the excitation of vibrational modes of the surface region of the organic medium. The thickness of the analyzed surface region can be varied by changing the incident electron energy and/or the scattering geometry. Selective labelling allows to better separate the contributions of main chain and of pendant-groups, and to eliminate the influence of contaminants. It is shown for instance that isotactic and atactic polymer surfaces differ, the former being mainly composed of phenyl rings. End group segregation at the surface may also be important. Multiple losses are much more intense than the corresponding combination modes in IR: the theory of interaction of low energy electrons with polymer films should be further investigated.

AB - HREELS spectra of selectively deuterated polystyrene films show loss energies corresponding to the excitation of vibrational modes of the surface region of the organic medium. The thickness of the analyzed surface region can be varied by changing the incident electron energy and/or the scattering geometry. Selective labelling allows to better separate the contributions of main chain and of pendant-groups, and to eliminate the influence of contaminants. It is shown for instance that isotactic and atactic polymer surfaces differ, the former being mainly composed of phenyl rings. End group segregation at the surface may also be important. Multiple losses are much more intense than the corresponding combination modes in IR: the theory of interaction of low energy electrons with polymer films should be further investigated.

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VL - 189-190

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JO - Surface Science

JF - Surface Science

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Study of polymer film surfaces by EELS using selectively deuterated polystyrene

Abstract

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