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L’étude porte sur les spectres IR de plusieurs échantillons de polyamide 6, traités avec des solutions d’iode et d’iodure de potassium à différentes concentrations, et sur les spectres de leurs respectives désorptions d’iode après un traitement au thiosulfate de sodium. Les changements spectraux observés ont été associés aux variations dans les formes polymorphiques cristallines et de la polyamide, qui mettent en évidence la formation d’un complexe entre l’ion tri-iodure et le polymère pendant le processus de sorption de l’iode et un changement de structure pendant la désorption.
Se estudian los espectros IR de varias muestras de poliamida 6 tratadas con soluciones de yodo y yoduro potásico de diferentes concentraciones, y los de sus respectivas desorciones de yodo por tratamiento con tiosulfato sódico. Los cambios espectrales observados se han relacionado con las variaciones en las formas polimórficas cristalinas y de la poliamida, que ponen de manifiesto la formación de un complejo entre el ión tri-yoduro y el polímero durante el proceso de sorción de yodo y un cambio de estructura durante la desorción.
The IR spectra of several samples of polyamide 6 treated with iodine and potassium iodide solutions of different concentrations were studied, along with their respective desorption of iodine under treatment with sodium thiosulphate. The spectral changes observed were related to variations in the and polymorphic crystalline shapes of the polyamide, which reveal the formation of a complex between the triiodide ion and the polymer during the process of iodine sorption and a change in structure during desorption.
Àrees temàtiques de la UPC::Enginyeria tèxtil, Iode, Poliamides, Cristal·lització, Espectrometria, Microestructura
Àrees temàtiques de la UPC::Enginyeria tèxtil, Iode, Poliamides, Cristal·lització, Espectrometria, Microestructura
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