Sorption of Ag+ Ions by Polyurethanes Modified by Carbamide or Amino Groups

The sorption of Ag + ions by polyurethanes (PU) of various chemical structure was investigated. It was shown that the sorption capacity of the polymers can be increased by introducing complexing fragments (urea or amino groups). The possibility of forming complexes with strong coordination ability between Ag + ions and PU fragments was established. It was shown that complex formation leads to an increase in the “effective” cross-linking density of the matrix.