Resumen de Online multi-stage membrane filtration of synthetic polydispersed water-soluble polymers with uv visible absorption as a mode for their detection

B.l Rivas, V.m Shkinev, T.g Dzherajan, T.v Danilova, Eduardo D Pereira, A Maureira

• 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.