Skip to main content

Advertisement

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
  1. Reference, new, non degraded samples; HCl, acid hydrolysis; NaOH, alkaline hydrolysis; H2O2, oxidation; Xe, photooxidation