Table 2.

Molecular weights, thermal properties, and surface energy of the synthesized polyurethanes.

	Mw a(kDa)/mol	Mn b(kDa)/mol	PDIc	Tg (°C)d	Water (°)e	Surface energy (mN m−1)
PU 1	145.0	101.8	1.4257	32.00 ± 0.32	61.34 ± 1.48	49.19 ± 1.50
PU 2	68.2	44.6	1.5284	30.90 ± 0.21	60.67 ± 0.84	49.71 ± 1.13
PU 3	30.8	20.2	1.5242	26.43 ± 0.45	60.44 ± 0.63	50.10 ± 0.64
PU 4	16.9	12.6	1.2960	25.30 ± 0.22	58.00 ± 0.52	52.59 ± 0.53

PDI: polydispersity index.

^aThe weight average molecular weights.

^bThe number average molecular weights.

^cPDI = M_w/M_n.

^dGlass transition temperature.

^eWater contact angle.