Analysis using size exclusion chromatography of poly(N-isopropyl acrylamide) using methanol as an eluent.
J Chromatogr A
; 1508: 16-23, 2017 Jul 28.
Article
em En
| MEDLINE
| ID: mdl-28602503
ABSTRACT
Size Exclusion Chromatography is traditionally carried out in either aqueous or non-polar solvents. A system to present molar mass distributions of polymers using methanol as a mobile phase is presented. This is shown to be a suitable system for determining the molar mass distributions poly(N-isopropylacrylamide)s (PNIPAM); a polymer class that is often difficult to analyze by size exclusion chromatography. DOSY NMR was used to provide intrinsic viscosity data that was used in conjunction with a viscometric detector to provide absolute calibration. Then the utility of the system was shown by providing the absolute molar mass distributions of dispersed highly branched PNIPAM with biologically functional end groups.
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01-internacional
Base de dados:
MEDLINE
Assunto principal:
Resinas Acrílicas
/
Cromatografia em Gel
Tipo de estudo:
Evaluation_studies
Idioma:
En
Revista:
J Chromatogr A
Ano de publicação:
2017
Tipo de documento:
Article