Research Article
Chemical and Enzymatic Hydrolysis of Polyurethane/Polylactide Blends
Table 3
The mass changes of PURs and their blends with PLA after incubation in buffer and enzymes solutions.
| | Sample | The samples mass changes (±SD) [%] | | Incubation in PBS | Incubation in trypsin | Incubation in lipase | | 4 weeks | 36 weeks |
| | PUR10PHB+90PTMG | +1.3 ± 0.6 | −3.3 ± 1.6 | −0.3 ± 0.1 | 0.0 ± 0.0 | | PUR10PHB+90PTMG/PLA | +2.6 ± 0.4 | −2.1 ± 0.4 | −0.3 ± 0.1 | +0.3 ± 0.1 | | PUR20PHB+80PTMG | −0.5 ± 0.4 | −1.5 ± 0.4 | +0.9 ± 0.1 | +1.9 ± 0.0 | | PUR20PHB+80PTMG/PLA | −1.8 ± 0.3 | −5.7 ± 1.2 | −0.8 ± 0.1 | +0.7 ± 0.1 |
| | PUR10PHB+90PCL | −0.2 ± 0.1 | +3.1 ± 0.1 | −0.4 ± 0.1 | −0.5 ± 0.3 | | PUR10PHB+90PCL/PLA | −3.7 ± 1.8 | −4.5 ± 1.5 | −0.6 ± 0.1 | −0.5 ± 0.5 | | PUR20PHB+80PCL | +0.8 ± 0.1 | −0.4 ± 0.4 | −0.1 ± 0.1 | +0.1 ± 0.1 | | PUR20PHB+80PCL/PLA | −0.2 ± 0.0 | −4.5 ± 0.5 | −0.4 ± 0.0 | +0.2 ± 0.1 |
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