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

Table 1

Properties of aqueous IPU/Xa dispersions and based films.

Xa content, %	Dispersion properties		Film characteristics
	,; nm	рН	Water absorption, 24 hours, %	Contact angle, degree	Tensile strength σ, МPа	Elongation at a break point ε, %
0	71	7,84	2,6	68	7,3	1100
5,0	176	7,55	23	50	8,1	742
10,0; 30,0	272	7,17	65	45	16,9	530
	504	6,82	405	29	36,4	360
100,0	—	—	The film was dissolved	—

: average particle radius, applicable (the film is brittle).