Detailed characterization of poly(2‐ethyl‐2oxazoline)s by energy variable collision‐induced dissociation study

This study showed that ESI-MS/MS is very useful for differentiating poly(2-ethyl-2-oxazoline)s with different end-groups by varying the collision energy. The SY method has the potential to determine the importance of the end-groups on the fragmentation behavior of this polymer type.