Loss part of the dielectric permittivity vs frequency of PCB54/toluene mixture at the following temperatures: (down triangles), (squares), (up triangles), and (circles).
Loss part of the dielectric permittivity vs frequency of PCB54/toluene mixtures at the following concentrations of PCB54 and temperatures: 70% and (down triangles), 50% and (squares), 35% and (up triangles), and 20% and (circles). (Inset) Dielectric strength of the low frequency process vs PCB54 concentration. The data for pure PCB54 and toluene are taken from Refs. 41 and 42, respectively.
Loss part of the dielectric permittivity vs frequency of PCB54/toluene and OTP/toluene mixture at .
Log plot of the relaxation time vs temperature of all PCB54/toluene mixtures with the following PCB54 wt %: 70 (blue), 50 (green), 35 (dark pink) and 20 (red); and for pure PCB54 (black circles) and toluene (black triangles). The toluene secondary relaxation is also displayed (dashed black line). Pure PCB54 and toluene relaxational data are taken from Refs. 41 and 42, respectively. The colored and black solid lines are the fits of the AG-SC model to the component dynamics of the mixture and the AG model to pure PCB54 and toluene dynamics, respectively.
Temperature dependence of the size of CRR (upper panel) and the self-concentration (lower panel) of PCB54 related dynamics for all investigated mixtures. Percentages refer to PCB54.
Size of CRR (solid lines and left axis) and number of structural unit participating to the CRR (dashed lines and right axis) vs the temperature normalized at the of pure PCB54 and toluene.
Loss part of the dielectric permittivity vs frequency at of pure toluene (filled circles) taken from Ref. 42 and PCB54/toluene with the following toluene wt %: 80 (empty up triangles), 65 (filled down triangles), 50 (empty diamonds) and 30 (empty squares).
Relevant parameters for PCB54 and toluene. Data for the parameter of the AG relation and for the parameters and of the specific heat are referred to a per mole PCB54 and toluene basis for PCB54 and toluene, respectively.
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