TY - GEN A1 - Hoskins, Jessica A1 - Falkenhagen, Jana A1 - Weidner, Steffen A2 - Udomkichdecha, W. A2 - Böllinghaus, T. A2 - Manonukul, A. A2 - Lexow, J. T1 - Characterization of randomly branched polymers utilizing liquid chromatography and mass spectrometry T2 - Materials challenges and testing for manufacturing, mobility, biomedical applications and climate N2 - Branching in polymers is an important way to modify the materials properties, however the characterization of random branching in polymeric materials is a challenge in polymer analysis. In this work, liquid adsorption chromatography methods are developed for a commercially available hyperbranched polyester (Boltorn™). This Chromatographie techniques was then coupled to offline MALDI-TOF MS analysis, a first in the analysis of randomly branched polymers. The coupling of these two techniques provides superior MALDI-TOF spectra, enabling the easy identification of structural subdistributons based on theoretical molecular weight. Detailed analysis of the MALDI-TOF spectra shows that these Chromatographie conditions separate cyclic Boltorn polymers (with no core molecule) from non-cyclic polymers (with core molecule), and these are the only two architectures observed. MALDI MS also confirms that the Chromatographie Separation mode is adsorption, but further analysis is needed to determine if there is a Separation by degree of branching. PB - Springer KW - Hyperbranched polyesters KW - Polymer mass spectrometry KW - Polymer chromatography KW - Liquid adsorption chromatography KW - MALDI-TOF MS KW - Carbon capture KW - Climate change KW - Lubricant KW - Micro manufacturing KW - Multiphysics simulations KW - WMRIF PY - 2014 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/32519 AN - OPUS4-32519 SN - 978-3-319-11339-5 SN - 978-3-319-11340-1 SP - 1 EP - 10 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany