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Characterization of the Chemical Composition Distribution of Poly( n ‐butyl acrylate‐stat‐acrylic acid)s
Author(s) -
Maier Helena,
Malz Frank,
Radke Wolfgang
Publication year - 2015
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201400399
Subject(s) - acrylic acid , monomer , acrylate , composition (language) , chemistry , chemical composition , polymer chemistry , butyl acrylate , elution , polymer , chromatography , organic chemistry , linguistics , philosophy
A size exclusion chromatography (SEC)‐gradient method is developed allowing poly( n ‐butyl acrylate‐ stat ‐acrylic acid)s to be separated with respect to content of acrylic acid over the complete composition range. After setting up the chromatographic method, samples that, according to the amounts of charged monomers, are expected to have identical chemical composition are compared. The chromatograms reveal differences in elution volume, which, by 1 H NMR spectroscopy, can be partially traced back to differences in polymer composition. In addition, samples of similar compositions prepared in different solvents exhibit differences in chemical composition distribution.