(Bio)degradable Ionomeric Polyurethanes Based on Xanthan: Synthesis, Properties, and Structure

Table 3

Physic-mechanical characteristics of the IPU, IPU/Xa films after acid and alkaline hydrolysis.

Xa content, %	0,1 N solution of КОН			0,1 N solution of НCl
	Weight loss, %	Tensile strength; σ, МPа	Elongation at a break point, ε, %	Weight loss, %	Tensile strength; σ, МPа	Elongation at a break point, ε, %
0	0,1	5,7	970	0,22	6,7	860
5,0	1,8	1,3	442	1,7	1,7	402
10	3,3			3,4
30	10,6			11

of the film.