Comparison of ESI, APCI and MALDI for the (tandem) mass analysis of poly(2-ethyl-2-oxazoline)s with various end-groups

► Comparison of ESI, APCI and MALDI MS and MS/MS of poly(oxazoline)s was shown. ► Tandem MS experiments were performed to gain additional structural information. ► The automatic interpretation of tandem MS data via special software was presented. ► The information obtained from PEtOxs was added to polymer product ion libraries.