Characterization of the chemical composition of a block copolymer by liquid chromatography/mass spectrometry using atmospheric pressure chemical ionization and electrospray ionization

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Leeuwen, Suze M. van and Tan, BoonHua and Grijpma, Dirk W. and Feijen, J. and Karst, Uwe (2007) Characterization of the chemical composition of a block copolymer by liquid chromatography/mass spectrometry using atmospheric pressure chemical ionization and electrospray ionization. Rapid Communications in Mass Spectrometry, 21 (16). pp. 2629-2637. ISSN 0951-4198

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Abstract:Liquid chromatography/mass spectrometry (LC/MS) with electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) in the positive and negative ion modes was used for the characterization of a block copolymer consisting of methoxy poly(ethylene oxide) (mPEO), an -caprolactone (CL) segment and linoleic acid (LA), used as surfactant in water-based latex paints. Chromatographic separation was obtained based on the number of CL units in the polymer species and the presence of an mPEO and/or LA tail. Different ionization methods were found to be complementary and only their combination allowed the qualitative profiling of the chemical composition. The LC/MS method has proven valuable for following the reaction in time, as well as for comparison of different polymeric surfactants.
Item Type:Article
Copyright:© 2007 WileyInterscience
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/59867
Official URL:http://dx.doi.org/10.1002/rcm.3114
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