Table 3. Formulation for Synthesis of Thermal Polyurethanes

Polyester polyol			Chain extender			Isocyanate
Sample	PE 1	PE 2	1,4 BD	1,3 PD	Isosorbide	MDI
TPU 1-1	1	-	1	-	-	1.1
TPU 1-2	1	-	-	1	-	1.1
TPU 1-3	1	-	-	-	1	1.1
TPU 2-1	-	1	1	-	-	1.1
TPU 2-2	-	1	-	1	-	1.1
TPU 2-3	-	1	-	-	1	1.1