Biodegradation of biodegradable polymers from petrochemical sources

BIODEGRADATION OF BIODEGRADABLE POLYMERS FROM PETROCHEMICAL SOURCES 

Aliphatic polyesters and copolyesters based on sncdnic add and commercialized under the name Bionolle are biodegradable in compost, in moist soil, in fresh water with activated sludge and in sea water [67]. 

A series of aliphatic homopolyesters and copofyesters was prepared from 1,4-bntanediol and dimethyl esters of succinic and adipic acids throngh a two-step process of transesterification 

The biodegradation behaviour and mechanism of aliphatic copolyester poly(butylene succinate-co-butylene achpate) (PBSA) by Aspergillus versicolor isolated from compost was 

Studied by Zhao et al. [75], Analysis of weight loss showed that more than 90% of PBSA film was assimilated within 25 d s. The analyses of H-NMR and differential scanning calorimetry (DSC) indicated that the preferred degradation took place in the adipate nnits and the succinate units are relatively recalcitrant to A. verisciolor. 

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