AI Article Synopsis
- PVC is widely used in various materials but degrades under UV light, negatively affecting its properties and lifespan.
- Four telmisartan organotin(IV) compounds were tested as photostabilizers in PVC films, showing better resistance to degradation compared to unmodified PVC.
- The organotin(IV) compounds may protect PVC by scavenging harmful radicals and decomposing peroxides, suggesting potential for use as effective PVC additives.
Article Abstract
Poly(vinyl chloride) (PVC), a polymer widely used in common household and industrial materials, undergoes photodegradation upon ultraviolet irradiation, leading to undesirable physicochemical properties and a reduced lifetime. In this study, four telmisartan organotin(IV) compounds were tested as photostabilizers against photodegradation. PVC films (40-µm thickness) containing these compounds (0.5 wt%) were irradiated with ultraviolet light at room temperature for up to 300 h. Changes in various polymeric parameters, including the growth of hydroxyl, carbonyl, and alkene functional groups, weight loss, reduction in molecular weight, and appearance of surface irregularities, were investigated to test the efficiency of the photostabilizers. The changes were more noticeable in the blank PVC film than in the films containing the telmisartan organotin(IV) compounds. These results reflect that these compounds effectively inhibit the photodegradation of PVC, possibly by acting as hydrogen chloride and radical scavengers, peroxide decomposers, and primary photostabilizers. The synthesized organotin(IV) complexes could be used as PVC additives to enhance photostability.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6804033 | PMC |
| http://dx.doi.org/10.3390/molecules24193557 | DOI Listing |
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