Biodegradation of Polyethylene Glycol-Based Polyether Urethanes

Author: Sarkar Suparna   Basak Piyali   Adhikari Basudam  

Publisher: Taylor & Francis Ltd

ISSN: 0360-2559

Source: Polymer-Plastics Technology and Engineering, Vol.50, Iss.1, 2011-01, pp. : 80-88

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Abstract

The biodegradation of polyethylene glycol (PEG of different molecular weights) based polyether urethanes were studied under soil burial condition for 180 days under indoor normal hydrothermal conditions and by cultured bacteria (Pseudomonas aeruginosa) for 30 days at 37°C. The biodegradation was estimated from the weight loss, tensile strength, ultimate elongation and also by FTIR spectroscopy, optical, scanning electron microscopy. The weight loss and losses in tensile strength, elongation at break of the polymer is maximum in case of PUPEG4000 and minimum in case of PUPEG200 (both in case of soil burial condition and in cultured bacteria).