𝔖 Bobbio Scriptorium
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The effect of temperature on the biodegradation test

✍ Scribed by N.T. Lotto; M.R. Calil; C.G.F. Guedes; D.S. Rosa

Publisher
Elsevier Science
Year
2004
Tongue
English
Weight
217 KB
Volume
24
Category
Article
ISSN
0928-4931

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✦ Synopsis

The biodegradation of poly(q-caprolactone) (PCL), poly-h-(hydroxybutyrate) (PHB), and poly-h-(hydroxybutyrate-co-h-valerate) (PHB-V) was assessed based on the mass retention when the polymers were incubated in soil compost at 46 and 24 8C. Biodegradation was greatest at 46 8C for the of three polymers studied. PHB and PHB-V showed similar biodegradation at both temperatures. The crystallinity and melting temperature of the polymers were determined by thermal analysis. PCL had the lowest crystallinity and PHB the highest. There was no correlation between crystallinity and the extend of polymer biodegradation.

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