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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Multidimensional chromatographic and hyphenated techniques for hydrophilic copolymers, 1 analysis of comb-like copolymers of ethylene oxide and methacrylic acid
Macromolecular Chemistry and Physics, Volume 206, No. 22, Year 2005
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Description
The Chromatographic analysis of hydrophilic copolymers is complicated due to the fact that in most cases aqueous eluents must be used. In aqueous eluents different polar and ionic effects may disturb the selective interactions between the macromolecules and the stationary phase making it impossible to separate such copolymers with regard to chemical composition. Therefore, 2D chromatography combining a separation according to composition with a separation according to molar mass has been applied mostly to polymers that are soluble in organic solvents. The present contribution describes experimental approaches to analyze such hydrophilic copolymers by 2D-chromatography. For a model polymer system resulting from the copolymerization of methacrylic acid and a poly(ethylene glycol) macromonomer, it is shown that different analytical techniques including SEC, LC-CC, MALDI-TOF MS and 2D chromatography can be used to analyze the different parameters of molecular heterogeneity of such copolymers. © 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Authors & Co-Authors
Rittig, Frank
Germany, Ludwigshafen
Basf se
Becker, Stefan
Germany, Ludwigshafen
Basf se
Pasch, Harald
Germany, Darmstadt
Fraunhofer Institute for Structural Durability and System Reliability Lbf
Statistics
Citations: 32
Authors: 3
Affiliations: 3
Identifiers
Doi:
10.1002/macp.200500344
ISSN:
10221352
Research Areas
Genetics And Genomics