ONLINE MULTI-STAGE MEMBRANE FILTRATION OF SYNTHETIC POLYDISPERSED WATER-SOLUBLE POLYMERS WITH UV VISIBLE ABSORPTION AS A MODE FOR THEIR DETECTION
| Autor: | Antonio Maureira, Eduardo Pereira, T.G Dzherajan, V.M Shkinev, T.V Danilova, Bernabé L. Rivas |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
Chromatography Calibration curve Microfiltration ultrafiltration membranes General Chemistry Sulfonic acid law.invention Gel permeation chromatography chemistry.chemical_compound Membrane Water-soluble polymers chemistry Nitrate law Molar mass distribution Filtration |
| Zdroj: | Journal of the Chilean Chemical Society v.55 n.1 2010 SciELO Chile CONICYT Chile instacron:CONICYT Journal of the Chilean Chemical Society, Volume: 55, Issue: 1, Pages: 53-55, Published: 2010 JOURNAL OF THE CHILEAN CHEMICAL SOCIETY Artículos CONICYT |
| ISSN: | 0717-9707 |
| DOI: | 10.4067/s0717-97072010000100013 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|