An Investigation of Chitosan-Grafted-Poly(vinyl alcohol) as an Electrolyte Membrane

Table 3

Mechanical properties of dry and wet membranes at room temperature.

Membrane	Dry membrane			Wet membrane
	Tensile strength	Elongation at break	Young modulus	Tensile strength	Elongation at break	Young modulus
	(MPa)	(%)	(MPa)	(MPa)	(%)	(MPa)
Chitosan (CS)	32.51	1.92	16.96	18.18	6.23	2.92
CS_X	31.45	4.23	7.43	20.65	10.27	2.01
CS/PVA	28.45	115.67	0.25	0.97	24.17	0.04
CS/PVA_X	53.59	154.67	0.35	2.17	82.67	0.03
CS-g-PVA/PVA	9.67	107.83	0.09	9.23	125.33	0.07
CS-g-PVA/PVA_X	17.17	134.50	0.13	15.13	162.67	0.09
PVA	46.86	262.50	0.18	2.05	95.22	0.02
PVA_X	52.99	285.43	0.19	6.63	148.22	0.04
Nafion 117	28.57	260.17	0.11	20.64	121.75	0.17