| We have studied dynamics of glass-forming polymers using inelastic and quasielastic neutron scattering in a wide temperature range. We revealed many interesting features of Boson peak as well as picosecond fast process. In addition we found a E-process which is characteristic to conformational transition in polymers. Combining all the data we draw a relaxation time map (temperature dependence of relaxation time) in Figure 1 and schematic sketch of glass transition in polymers, including picosecond fast process, E-process, a-process in cooperative rearranging region (CRR). |
| Fig. 1. Relaxation time map of polybutadiene. |
| Fig. 2. Schematic sketch of glass transition in polymers |
| Fast process in a potential well, conformation transition (E-process), cooperative motion in CRR (α-process) |
| Macromolecules, 24, 1826
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