Photodegradation of poly(neopentyl terephthalate)

► Degradation of PNT - poly(neopentyl terephthalate) on exposure to UV. ► Identification of degradation products of PNT using MALDI-ToF. ► PNT degrades similar as PNI but 13× faster, due to subtle difference in structure. ► Degradation can be predicted quantitatively over 4 decades in (time × intensity).