There are many of plastic products around us. However, many of those products are incinerated, which places a heavy burden on the environment, such as CO2 emissions. Therefore, in this research, we focused on biodegradation as a vailable disposal method and conducted research accordingly. In this study, synthesis and degradability of polyurethanes were investigated using degradable polycaprolactone diol (PCL) and amino acid derived lysine triisocyanate (LTI). For comparison, PCL 1000 and PCL 2000 were used. The yield was 0.82 g (yield 82%) in PCL 1000, and the yield was 1.30 g (yield 65%) in 2000. As a result of FT-IR measurement, N-H stretching vibration due to urethane bond near 3400 cm-1 and C-O stretching vibration of carbonyl bond near 1700 cm-1 were confirmed, respectively. Further, it is conceivable that the compound is insoluble in various organic solvents such as DMF and THF, and has a crosslinked structure. As a result of the tensile test, PCL 1000 had a breaking point-stress of 8.04 MPa, a breaking point-strain of 319.33% and a modulus of elasticity of 38.76 MPa. As a result of examining the degradability, it was confirmed that the weight loss was 20% in 30 days.

Synthesis and properties of novel biodegradable polyurethanes using polycaprolacton diol and diisocyanates

2019 Fall National Meeting

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