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Polarized confocal Raman microspectroscopy studies of chain orientation on injected poly(propylene)/montmorillonite nanocomposites
Author(s) -
GarcíaLópez D.,
Merino J. C.,
GobernadoMitre I.,
Pastor J. M.
Publication year - 2005
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.21687
Subject(s) - raman spectroscopy , nanocomposite , materials science , montmorillonite , raman microspectroscopy , confocal , polymer chemistry , chemical engineering , composite material , optics , physics , engineering
Abstract Molecular orientation along the depth of poly(propylene) (PP) and PP nanocomposite samples was analyzed by using confocal Raman microspectroscopy. The injection process led to a chain orientation that is higher on the surface of the samples. Residual stresses were relaxed through an annealing treatment, resulting in an increase of the molecular orientation along the injection direction. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 96: 2377–2382, 2005