Caracterización de la heterogeneidad estructural en polipropileno polimórfico mediante espectroscopia vibracional: microscopia IR y Raman

A series of polymorphic samples of isotactic polypropylene, obtained via selective nucleation, were studied by vibrational spectroscopy. A correlation was observed between the spectra obtained and the Turner-Jones parameter, characteristic of the fraction of the β polymorph. Aspects of the structura...

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Bibliographic Details
Main Authors: Ellis, G., Marco, C., Gómez, M. A., Blancas, C.
Format: Article
Language:English
Published: Elsevier 2004-04-01
Series:Boletín de la Sociedad Española de Cerámica y Vidrio
Subjects:
IR
Online Access:http://ceramicayvidrio.revistas.csic.es/index.php/ceramicayvidrio/article/view/535/555
Description
Summary:A series of polymorphic samples of isotactic polypropylene, obtained via selective nucleation, were studied by vibrational spectroscopy. A correlation was observed between the spectra obtained and the Turner-Jones parameter, characteristic of the fraction of the β polymorph. Aspects of the structural heterogeneity in the samples were evaluated using mapping techniques with IR micrsocopy, confocal Raman microscopy, synchrotron IR microscopy and IR imaging microscopy.<br><br>Una serie de muestras polimórficas de polipropileno isotáctico, obtenidos por nucleación selectiva, fueron estudiadas mediante espectroscopia vibracional. Se observó una correlación entre los espectros obtenidos y el parámetro de Turner-Jones, característico de la fracción del polimorfo β. Se evaluaron aspectos de la heterogeneidad estructural utilizando técnicas de mapeo con microscopia IR, microscopia Raman confocal, microscopia IR con radiación sincrotrón y microscopia IR de imagen.
ISSN:0366-3175