ONLINE MULTI-STAGE MEMBRANE FILTRATION OF SYNTHETIC POLYDISPERSED WATER-SOLUBLE POLYMERS WITH UV VISIBLE ABSORPTION AS A MODE FOR THEIR DETECTION

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.

Bibliographic Details

Main Authors:	RIVAS,B.L, SHKINEV,V.M, DZHERAJAN,T.G, DANILOVA,T.V, PEREIRA,E.D, MAUREIRA,A
Format:	Digital revista
Language:	English
Published:	Sociedad Chilena de Química 2010
Online Access:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000100013
Tags:	Add Tag No Tags, Be the first to tag this record!