Fig. 7
From: Wood morphology and properties from molecular perspectives
Dynamic FTIR spectra of peeled fines (primary wall) from mechanical pulp fibres, showing the in-phase and out-of-phase components as a function of the wavenumber in the interval 1,800 to 1,200 cm−1 at an RH of 0 % and at 25 °C. The split peak of the cellulose C–OH bending vibration at 1,425 cm−1 reflects the straining of cellulose, while the split peak of the lignin aromatic ring at 1,510 cm−1 indicates the stress contribution from lignin