Table 4.
Characteristic bands for a functional group of untreated high land bamboo fibre at various ages [23, 30, 31, 32, 33, 34].
| Wave number (cm−1) | Functional group | Source |
|---|---|---|
| 3422–3416 | O–H stretching | Alcohol (cellulose; hemi-cellulose; lignin), phenol (bond H), carboxylic acid |
| 2080–2074 | C–H | Alkanes |
| 1622–1618 | C=O | hemicelluloses and lignin |
| 1380 | C–H | cellulose and hemicellulose |
| 1106 | C–O | Alcohol (cellulose; hemicellulose; lignin), ether, carboxylic acid, ester |
| 618 | O–H out of plane bending | Lignin component |