Research Article
Chemical and Enzymatic Hydrolysis of Polyurethane/Polylactide Blends
Table 7
Molecular weights of polyurethane (PUR20PHB+80PCL) and its blend (PUR20PHB+80PCL/PLA) before and after incubation in PBS, lipase (L), and trypsin (T).
| | Sample | | | | after incubation [%] | after incubation [%] |
| | PUR20PHB+80PCL | 19240 | 51810 | 2.7 | — | — | | PUR20PHB+80PCL PBS | 19440 | 34230 | 1.8 | +1.0 | −33.9 | | PUR20PHB+80PCL L | 15940 | 51130 | 3.2 | −17.1 | −1.3 | | PUR20PHB+80PCL T | 21010 | 50020 | 2.4 | +9.2 | −3.5 |
| | PUR20PHB+80PCL/PLA | 23160 | 56580 | 2.4 | — | — | | PUR20PHB+80PCL/PLA PBS | 17090 | 32690 | 1.9 | −26.2 | −42.2 | | PUR20PHB+80PCL/PLA L | 21380 | 48980 | 2.3 | −7.7 | −13.4 | | PUR20PHB+80PCL/PLA T | 20330 | 49720 | 2.5 | −12.2 | −12.1 |
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