Fig. 4: FTIR ageing indices for weathered plastic polymers. | npj Materials Degradation

Fig. 4: FTIR ageing indices for weathered plastic polymers.

From: An advanced analytical approach to assess the long-term degradation of microplastics in the marine environment

Fig. 4: FTIR ageing indices for weathered plastic polymers.The alternative text for this image may have been generated using AI.

A The position of the hydroxyl (O–H, 3100–3700 cm−1), carbonyl (C=O, 1600–1800 cm−1) and carbon–oxygen (C–O, 1000–1200 cm−1) bands used to calculate the B hydroxyl index, C carbonyl index and D carbon–oxygen index for 12 month-aged plastics over time.

Back to article page