Degradability studies of poly(l-lactide) after multi-reprocessing experiments in extruder

Reprocessability of PHB in extrusion: ATR-FTIR, tensile tests and thermal studies

“…Nevertheless, in the case of biodegradable plastics, there are few studies related to their recycling [4][5][6][7] . Life cycle analysis [8] of poly(lactic acid) (PLA), which is one the most studied biopolymers, pointed out that despite of its low environmental impacts, this situation can worsen if recycling is not achieved.…”

Data on Specific Polymers

“…588 In industrial composting and incubation under abiotic conditions hydrolytic degradation via random ester bond scission preferentially occurs in poly(L-lactide). 589 Multireprocessing of PLLA did not significantly affect the rate of biodegradation. 589 Lactic acid and its oligomers terminated by hydroxyl and carboxyl end-groups were the products of PLLA hydrolytic degradation.…”

“…589 Multireprocessing of PLLA did not significantly affect the rate of biodegradation. 589 Lactic acid and its oligomers terminated by hydroxyl and carboxyl end-groups were the products of PLLA hydrolytic degradation. 589 Poly(lactic acid)/anatase or rutile titanium dioxide composites were prepared in a form of thin films.…”

“…589 Lactic acid and its oligomers terminated by hydroxyl and carboxyl end-groups were the products of PLLA hydrolytic degradation. 589 Poly(lactic acid)/anatase or rutile titanium dioxide composites were prepared in a form of thin films. 590 The UV absorbance results exhibit a UV shielding effect of rutile TiO 2 and degradation acceleration effect of anatase TiO 2 when particles are embedded in thin films of PLA matrix.…”

Forensic Engineering of Advanced Polymeric Materials. Part 1 – Degradation Studies of Polylactide Blends with Atactic Poly[(R,S)-3-hydroxybutyrate] in Paraffin

“…4,5 The degradation process of polylactide in various environments has been thoroughly investigated. [6][7][8][9][10][11][12][13][14] Natural poly(3-hydroxybutyrate) (PHB) has found a number of applications in food packaging, biomedical and pharmaceutical industry. However, its use is currently limited due to the high cost of production and the physical properties.…”