2004
DOI: 10.3989/cyv.2004.v43.i2.535
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Caracterización de la heterogeneidad estructural en polipropileno polimórfico mediante espectroscopia vibracional: microscopia IR y Raman

Abstract: 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. Palabras clave: poliprop… Show more

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“…Moreover, the ratio of the intensities of some of these regularity bands has been related to the degree of crystallinity26 or to the isotacticity 27. Other authors have related intensity ratios of some of these bands to the β phase content using IR microscopic techniques 28–30. The above results seem to indicate that the morphology of the different iPPs can be characterized by using FTIR spectroscopy.…”
Section: Introductionmentioning
confidence: 86%
“…Moreover, the ratio of the intensities of some of these regularity bands has been related to the degree of crystallinity26 or to the isotacticity 27. Other authors have related intensity ratios of some of these bands to the β phase content using IR microscopic techniques 28–30. The above results seem to indicate that the morphology of the different iPPs can be characterized by using FTIR spectroscopy.…”
Section: Introductionmentioning
confidence: 86%