Dynamics of Water in Partially Crystallized Solutions of Glass …
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3PG: c w =50 wt%
T cryst = 200 K
α-relaxation
Water
relaxation
(a)
ε´´
f [Hz]
t cryst = 0 s
3PG: c w =50 wt%
Ice relaxation
α-relaxation
(b)
ε´´
f [Hz]
t cryst = 480 min
Water
relaxation
PVME: c w =50 wt%
T cryst = 200 K
Water
relaxation
(c)
ε´´
f [Hz]
t cryst = 0 s
PVME: c w =50 wt%
Ice relaxation
(d)
ε´´
f [Hz]
t cryst = 480 min
Water
relaxation
Fig. 9 a Loss component, ε , of the complex permittivity, ε*(f), of the amorphous sample (t cryst =
0), and after isothermal crystallization b–d indicated in each figure for 3PG and PVME solutions. A
new relaxation process (ice relaxation) at low frequencies can be observed at longer crystallization
times
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100
t cryst = 480 min
PVME (c w = 50 wt%)
T cryst = 210 K
increasing time
ε´´
f [Hz]
(a)
t cryst = 480 min
(b)
ε´´
f [Hz]
PVP (c w = 55wt%)
T cryst = 215 K
increasing time
Fig. 10 Loss component, ε , of the complex permittivity, ε*(f), of a PVME (c w = 50 wt%) and
b PVME (c w = 55 wt%) at the T cryst and t cryst indicated in each figure