posted on 2024-02-28, 18:43authored byMarzena Rams-Baron, Alfred Błażytko, Maria Książek, Joachim Kusz, Marian Paluch
We investigated the
secondary relaxation behavior in rotor molecules
in a glassy and crystalline state by using the dielectric method.
Without changing the molecular source of secondary relaxation, only
by modifying the environment around the rotating unit we observed
notable variations in spectral parameters. Our results show that internal
rotation, like a probe, can sample the immediate surroundings with
high sensitivity to molecular-level changes that impact the rotation
parameters. Our research offers a new perspective on the dielectric
behavior of internal secondary relaxations and challenges the paradigm
of their irrelevant nature.