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. 2021 Apr 16;12(4):447. doi: 10.3390/mi12040447

Figure 4.

Figure 4

(a) Water contact angle images of the polyurethane copolymers, (b) water absorption plots of the polyurethane copolymers as a function of time, (c) relationship graph between the water contact angle values and the water absorption of the polyurethane copolymers as a function of the amount of PC component and (d) water vapor transmission values of the polyurethane copolymers.