Anomalous Raman scattering from the surface of conjugated polymer melts

H. Liem; P. Etchegoin; D. D.C. Bradley

doi:10.1103/PhysRevB.64.144209

Anomalous Raman scattering from the surface of conjugated polymer melts

H. Liem, P. Etchegoin, D. D.C. Bradley

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15 Scopus citations

Abstract

Confocal Raman spectroscopy from the surface of a polymer melt is shown to produce anomalous results for polarized Raman scattering of specific molecular vibrations. Values of the depolarization ratio that cannot exist in normal liquids are interpreted as due to surface-induced molecular orientation of the polymer chains. The technique provides one of the few direct experimental evidences of molecular-orientation effects predicted in lattice models of polymer melts. © 2001 The American Physical Society.

Original language	English (US)
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	64
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.64.144209
State	Published - Jan 1 2001
Externally published	Yes

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10.1103/PhysRevB.64.144209

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abstract = "Confocal Raman spectroscopy from the surface of a polymer melt is shown to produce anomalous results for polarized Raman scattering of specific molecular vibrations. Values of the depolarization ratio that cannot exist in normal liquids are interpreted as due to surface-induced molecular orientation of the polymer chains. The technique provides one of the few direct experimental evidences of molecular-orientation effects predicted in lattice models of polymer melts. {\textcopyright} 2001 The American Physical Society.",

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AB - Confocal Raman spectroscopy from the surface of a polymer melt is shown to produce anomalous results for polarized Raman scattering of specific molecular vibrations. Values of the depolarization ratio that cannot exist in normal liquids are interpreted as due to surface-induced molecular orientation of the polymer chains. The technique provides one of the few direct experimental evidences of molecular-orientation effects predicted in lattice models of polymer melts. © 2001 The American Physical Society.

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ER -

Anomalous Raman scattering from the surface of conjugated polymer melts

Abstract

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