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. 2020 Jun 15;25(12):2761. doi: 10.3390/molecules25122761

Figure 5.

Figure 5

Attenuated Total Reflection Flourier transformed Infrared Spectroscopy (ATR-FTIR) of homo-PP resin irradiated for 2000 h. (the black line, without accelerated photoaging; the red line, after the accelerated photoaging).