Table 4 The range of observed parameters and types of degradation processes
From: Model study of the leather degradation by oxidation and hydrolysis
Hydrolysable | Condensed | |||||||
|---|---|---|---|---|---|---|---|---|
AI (cm−1) | AII (cm−1) | ∆ν(AI–AII) (cm−1) | AI/AII | AI (cm−1) | AII (cm−1) | ∆ν(AI–AII) (cm−1) | AI/AII | |
Reference | 1632 ± 2 | 1548 ± 1 | 85 ± 4 | 1.452 ± 0.104 | 1631 ± 1 | 1550 ± 1 | 81 ± 1 | 1.466 ± 0.118 |
Xe | ||||||||
1w | 1641 ± 5 | 1541 ± 5 | 100 ± 5 | 1.682 ± 0.151 | 1638 ± 3 | 1540 ± 3 | 102 ± 2 | 1.620 ± 0.042 |
H 2 O 2 | ||||||||
1w | 1632 ± 2 | 1549 ± 2 | 84 ± 3 | 1.451 ± 0.086 | 1631 ± 1 | 1549 ± 2 | 83 ± 2 | 1.517 ± 0.061 |
5w | 1631 ± 2 | 1549 ± 2 | 83 ± 3 | 1.453 ± 0.107 | 1631 ± 1 | 1551 ± 2 | 81 ± 2 | 1.493 ± 0.094 |
HCl | ||||||||
1w | 1630 ± 2 | 1546 ± 3 | 83 ± 2 | 1.581 ± 0.076 | 1631 ± 1 | 1546 ± 3 | 85 ± 2 | 1.553 ± 0.068 |
5w | 1627 ± 2 | 1550 ± 3 | 76 ± 4 | 1.825 ± 0.145 | 1628 ± 1 | 1551 ± 1 | 75 ± 3 | 1.842 ± 0.115 |
NaOH | ||||||||
24h | 1633 ± 2 | 1555 ± 2 | 76 ± 2 | 0.805 ± 0.137 | 1631 ± 1 | 1553 ± 2 | 80 ± 2 | 0.973 ± 0.120 |