Biodegradation in the presence of plasticizers

Studies of the effect of plasticizers on PVC film stability were conducted using samples cast from tetrahydrofuran, THF. Samples which contained THF degraded more rapidly which is well known in weathering studies. THF exposed to UV radiation forms radicals which accelerate thermal degradation of PVC. Based on this example, it shonldbe also noted that plasticizer performance in any other aspect than weathering is not affected by admixtures but admixtures may be very critical for the outdoor performance of maity products. It is thus important to check the source and quality of the plasticizer. 

Plasticizers affect several important properties related to biodegradation rate of synthetic polymers 

Polyamide affected by Aspergillus, Chaetomium, Nigrospora, PenicrUium  

Polycarbonate affected by Altemaria, Aspergillus, Chaetomium, PeniciUium, and Tiichodeima 1.39 

Polymethylmethacrylate affected by Altemaria, AspergiUus Dactylium, PeacUomyces, PenicUhum, and Tnchoderma 1.44 

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