Online multi-stage membrane filtration of synthetic polydispersed water-soluble polymers with uv visible absorption as a mode for their detection
-
B.L RIVAS [1] ; V.M SHKINEV [2] ; T.G DZHERAJAN [1] ; T.V DANILOVA [2] ; E.D PEREIRA [1] ; A MAUREIRA [1]
-
[1] Universidad de Concepción
Universidad de Concepción
Comuna de Concepción, Chile
-
[2] Russian Academy of Sciences Vernadsky Institute of Geochemistry and Analytical Chemistry
-
- Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 55, Nº. 1, 2010, págs. 53-55
- Idioma: inglés
- Enlaces
-
Resumen
This paper reports the application of online membrane filtration with UV visible absorption as a mode of polydispersed substances detection for poly(acryloyl morpholine-co-2-acrylamido-2-methyl-1-propane sulfonic acid), poly[2-acrylamido-2-methyl-1-propane sulfonic acid-co-(3-acryloylamidopropyl) trimethylammonium nitrate), and poly(vinyl alcohol-co-crotonic acid) 10 % of crotonic acid which can be used in medicine and technology. The mass balance in all the cases was not below 100 ± 7 %. The calibration curve are linear at 1opt , 245, 230, and 220 nm in the interval 0.1-4.0 mg/mL, 0.2-3.0 mg/mL and 0.2-6.0 mg/mL, respectively. It was also used the combination of microfiltration, MF, and gel permeation chromatography, GPC to provide more complete information about the molecular weight distribution of the obtained fractions.
