On the mechanism of the hexamethylenediamine and guanidine hydrochloride polycondensation

Biocidal action of copolymers based on aliphatic diamines and guanidine hydrochloride

“…Copolymers with EDA, HMDA, and 1,8‐octamethylenediamine (OMDA) as bifunctional agents and GndCl as a trifunctional agent were synthesized. Water‐soluble samples of polymers were obtained according to Scheme …”

“…Such interactions are possible as the result of the attack of the diamine amino group on the positive charge of the guanidine carbon atom. Copolymer formation arises from a transamination reaction and is realized as a nucleophilic substitution mechanism …”

“…Polyguanidine copolymers are cationic polyelectrolytes that can split into polycations and low‐molecular anions; therefore, in aqueous solutions, the polyelectrolyte effect is observed . The intrinsic viscosities of copolymer samples were studied with a capillary hanging level Ubbelohde viscometer.…”

“…In addition to the decrease in toxic action, allergenic action and environmental safety are necessary. The structure of polyguanidines opens a variety of abilities to regulate its biocide activity and toxic action by means of the chemical modification of macromolecules . By means of the modification of the length and configuration of hydrocarbon radicals and by the creation of copolymers, it is possible to control the hydrophilic–hydrophobic balance of macromolecules.…”