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Nondestructive Quantification of Local Plasticizer Concentration in PVC by (1)H NMR Relaxometry.
Adams, Alina; Kwamen, Rance; Woldt, Benjamin; Graß, Michael.
Afiliación
  • Adams A; Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Templergraben 55, D-52056, Aachen, Germany.
  • Kwamen R; Institut für Technische und Makromolekulare Chemie, RWTH Aachen University, Templergraben 55, D-52056, Aachen, Germany.
  • Woldt B; Evonik Industries AG, Paul-Baumann-Straße 1, D-45772, Marl, Germany.
  • Graß M; Evonik Industries AG, Paul-Baumann-Straße 1, D-45772, Marl, Germany.
Macromol Rapid Commun ; 36(24): 2171-5, 2015 Dec.
Article en En | MEDLINE | ID: mdl-26437600
The properties of plasticized poly(vinyl chloride) (PVC) , one of the most important polymers today, are strongly dictated by the concentration of plasticizer. Yet, it has been impossible to quantify this concentration at different positions inside a PVC product without its destruction because of a lack of suitable analytical methods. Thus, this paper introduces a simple, fast, and efficient way to determine truly nondestructively the concentration of plasticizer in PVC by single-sided nuclear magnetic resonance (NMR). With the help of correlation curves between the concentration of plasticizer inside nonaged PVC samples and the corresponding volume-averaged NMR parameters, single-sided NMR allows the quantification of the local concentration of plasticizer in aged PVC plates at different depths by spatially resolved relaxation measurements. The presented approach represents a fundamental step toward in situ characterization of plasticized PVC.
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Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Cloruro de Polivinilo / Espectroscopía de Resonancia Magnética Idioma: En Revista: Macromol Rapid Commun Año: 2015 Tipo del documento: Article País de afiliación: Alemania

Texto completo: 1 Bases de datos: MEDLINE Asunto principal: Cloruro de Polivinilo / Espectroscopía de Resonancia Magnética Idioma: En Revista: Macromol Rapid Commun Año: 2015 Tipo del documento: Article País de afiliación: Alemania