11 Structure and Electrical/Dielectric Properties of Ion-Conductive Polymer. . .
191
Table 11.4
Interpretation of the absorption bands in IR spectra of LiClO
4 , DEG-1, and PEPA [43, 60]
LiClO
4
DEG-1
PEPA
Wave number,
Ôm −1
Group, type fluctuations
Wave number,
Ôm −1
Group, type fluctuations Wave number,
Ôm −1
Group, type fluctuations
3100–3600
–±°,
ν (a water)
3100–3600
–±°,
ν
3352
NH
2
+ NH,
ν asym
1637
LiClO
4
2914
–CH
2− ,
ν asym
3287
NH
2
+ NH,
ν sym
1086, 1113, 1146
ClO
4
−
,
ν asym
2872
–CH
2− ,
ν sym
2941
–CH
2− ,
ν asym
941
ClO
4
−
,
ν sym
1458
–CH
2− ,
δ
2827
–CH
2− ,
ν sym
627
ClO
4
−
(not associated with Li +
) 1352
CH
2− ,
δ
1641, 1585
NH
2
+ NH,
δ
–
–
1253
Epoxy group,
ν sym
1462
CH
2− ,
δ
–
–
1105
C-O-C,
ν
1310
CH
2− ,
δ
–
–
910, 856
Epoxy group,
ν asym
1124
C-N-C,
ν
ν, valence vibration;
ν sym and
ν asym , valence symmetric and asymmetric vibrations;
δ bending vibration