Influence of biodegradation on the loss of a plasticizer from poly(vinyl chloride)

Influence of biodegradation on the loss of a plasticizer from poly(vinyl chloride)

The influence of biodegradation by the microscopic fungus Aspergillus niger on the diffusion desorption of a dialkylphthalate plasticizer from PVC was studied. It is shown that the loss of dialkylphthalate accelerates with bio-overgrowth on the PVC. Loss of plasticizer is limited by its diffusion in...

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Veröffentlicht in:Polymer degradation and stability 1999-01, Vol.63 (1), p.111-112
Hauptverfasser: Gumargalieva, K Z, Zaikov, GE, Semenov, SA, Zhdanova, O A
Format: Artikel
Sprache:eng
Schlagworte:
Biodegradation
Desorption
Diffusion in solids
Esters
Evaporation
Fungi
Plasticizers
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Zusammenfassung:The influence of biodegradation by the microscopic fungus Aspergillus niger on the diffusion desorption of a dialkylphthalate plasticizer from PVC was studied. It is shown that the loss of dialkylphthalate accelerates with bio-overgrowth on the PVC. Loss of plasticizer is limited by its diffusion in the material volume in the case of bio-overgrowth, whereas loss from the same polymer in the absence of bio-overgrowth is evaporation limited.
ISSN:0141-3910