Journal for Biophysical Chemistry
Table 1 Raman and IR frequencies of POSS-PCU nanocomposite
Peak assignment | ν(FTIR), cm-1 | ν(Raman), cm-1 |
|---|---|---|
Si-O-H bending | - | 404 (m) |
p-substituted C-H deformation of aromatic ring | 790 | 777 (m) |
867 (s) | ||
p-substituted C-H bending of aromatic ring | 1018 | 1022 (vw) |
958 | 975 (m) | |
Urethane C-O stretching | 1065 | 1067 (w) |
Cage Si-O-Si stretching | 1111 | 966 (w) |
Carbonate C-O-C stretching | 1242 | 1253 (s) |
CHN deformation | 1529 | 1533 (m) |
C-C stretching | 1402 | 1620 (s) |
p-substituted stretching of aromatic ring | 1635 | 1648 (sh) |
1591 | 1591 (sh) | |
1462 | 1451 (s) | |
Carbonate C = O stretching from carbonate | 1738 | 1738 (m) |
C-H symmetric stretching | 2802 | 2751 (m) |
C-H asymmetric | 2937 | 2967 (sh) |
stretching | 2933 (sh) | |
(metha) | 2919 (s) | |
(ortho) | 2880 (s) | |
N-H asymmetric stretching | 3323 | 3327 (vw) |