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

Leeuwen van, Suze M. 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
Faculty:	Science and Technology (TNW)
Research Group:	Biomaterials Science and Technology (BST) Polymer Chemistry and BioMaterials (PBM)
Link to this item:	http://purl.utwente.nl/publications/59867
Official URL:	http://dx.doi.org/10.1002/rcm.3114
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