Polymer molecular weight distributions by thermal field flow fractionation using Mark-Houwink constants

Autor:	J. J. Kirkland, S. W. Rementer
Rok vydání:	1992
Předmět:	chemistry.chemical_classification Field flow fractionation Capillary action Chemistry Detector Analytical chemistry Viscometer Molar mass distribution Mark–Houwink equation Polymer Refractive index Analytical Chemistry
Zdroj:	Analytical Chemistry. 64:904-913
ISSN:	1520-6882 0003-2700
DOI:	10.1021/ac00032a014
Popis:	Molecular weight distributions (MWD) of polymers measured by thermal field flow fractionation (TFFF) typically must be accomplished by calibrating with polymer standards of known characteristics. In this study, the MWD of a variety of known polymers is successfully determined by TFFF using calibrations established with published Mark-Houwink (M-H) constants. The procedure uses a combination of the concentration-dependent refractive index detector with a sensitive online capillary viscometer detector
Databáze:	OpenAIRE
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