INTEC   05402
INSTITUTO DE DESARROLLO TECNOLOGICO PARA LA INDUSTRIA QUIMICA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Polymer Characterization by SEC with a Concentration Detector. Errors in the Average Molar Masses Due to Contamination by a Minority Constituent
Autor/es:
VEGA, J. R.; BEREK, D.; MEIRA, G. R.
Lugar:
Torun
Reunión:
Conferencia; 29th. International Symposium on Chromatography (ISC?2012); 2012
Institución organizadora:
European Society for Separation Science
Resumen:
Size exclusion chromatography with a differential refractometer (SEC/DR) is the standard technique for determining the number- and weight-average molar masses (Mn and Mw) of synthetic polymers [1]. Simulated and experimental examples were carried out to evaluate the errors in the determination of such averages when a main polymer (A) is contaminated by small amounts of a minority polymer (B).