Injection moulded tensile bars composed of native starch (0�C70%), poly( D , L -lactic acid) (95% L) (PLA, 13�C100%) and poly(hydroxyester-ether) (PHEE, 0�C27%) were buried in soil for 1 year in order to study the effects of starch and PHEE on rates of

Injection moulded tensile bars composed of native starch (0�C70%), poly( D , L -lactic acid) (95% L) (PLA, 13�C100%) and poly(hydroxyester-ether) (PHEE, 0�C27%) were buried in soil for 1 year in order to study the effects of starch and PHEE on rates of biodegradation