Characterization of polyoxyalkylene block copolymers by combination of different chromatographic techniques and MALDI-TOF-MS

Analytica Chimica Acta
Muhammad Imran MalikRobert Saf

Abstract

Polyoxyalkylene diblock copolymers (consisting of PEO as hydrophilic block and PBO or PHO as hydrophobic block) are characterized by combination of two dimensional liquid chromatography and MALDI-TOF-MS. Liquid chromatography under critical conditions (LCCC) is used as first dimension and fractions are collected, mobile phase evaporated and diluted in the mobile phase used in the second dimension (SEC, LCCC or LAC). This two-dimensional chromatography in combination of MALDI-TOF-MS gives information about purity of reaction products, presence of the byproducts, chemical composition and molar mass distribution of all the products.

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May 9, 2009·Journal of Separation Science·Muhammad Imran Malik, Bernd Trathnigg

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Citations

Dec 31, 2010·Analytical and Bioanalytical Chemistry·Shazia Abrar, Bernd Trathnigg
Apr 5, 2011·Analytical and Bioanalytical Chemistry·Shazia Abrar, Bernd Trathnigg
Mar 1, 2012·Analytical and Bioanalytical Chemistry·Muhammad Imran MalikHarald Pasch
Oct 16, 2015·Journal of Separation Science·Dušan Berek

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