Biodegradation of starch/polylactic acid/poly(hydroxyester-ether) composite bars in soil

By R. Shogren, W. Doane, Donald Garlotta, J. Lawton, J. L. Willett. 2003

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Biodegradation of flax fiber reinforced poly lactic acid (2010, background): “tion potential for polymeric compounds may result [5–7].”
Nanotechnology and its applications in lignocellulosic composites, a mini review (2007, methodology): “Other compatibilizers were also studied for the starch/poly (lactic acid) blends, such as poly (vinyl alcohol) [145] and poly(hydroxyester ether) [146] it was added to a starch and poly (lactic acid) blend (50/50, w/w) to enhance compatibility and improve mechanical properties.”
Thermal degradation of polypropylene/starch-based materials with enhanced biodegradability (2004, background): “They demonstrated that the biodegradation process does not affect the polylactic acid and only takes place in starch [ 29 ].”
Abiotic and biotic environmental degradation of the bioplastic polymer poly(lactic acid): A review (2017, background): “In another study, injectionmolded tensile bars of PLA buried in soil for 1 year showed no physical changes, no weight change and no significant change in tensile strength [106].”