Revisiting Dynamic Processes and Relaxation Mechanisms in a Heterocyclic Glass-Former: Direct Observation of a Transient State.

ABSTRACT: Despite decades of studies, a clear understanding of near-T_g phenomena remains challenging for glass-forming systems. This review delves into the intricate molecular dynamics of the small, heterocyclic thioether, 6-methyl-2,3-dihydro-1,4-benzodithiine (MeBzS₂), with a particular focus on its near-T_g cold crystallization and relaxation mechanisms. Investigating isothermal crystallization kinetics at various temperatures reveals a significant interplay between its molecular dynamics and recrystallization from a supercooled liquid. We also identify two independent interconversion paths between energetically privileged conformers, characterized by strained transition states. We demonstrate that these spatial transformations induce su

SUBMITTER: Nowok A 

PROVIDER: S-EPMC10910497 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature