Immobilization of N,N‐diallyl‐N,N‐dimethylammonium chloride on polyethylene. Biocidal properties of the material

Abstract

The immobilization of N,N‐diallyl‐N,N‐dimethylammonium chloride (DADMAC) on low‐density polyethylene (LDPE) films was carried out by the method of postradiation grafting using x‐ray radiation. The introduction of polycation exchanger links provided the appearance of hydrophilicity of the surface of the modified film. By measuring the wetting contact angle, IR and SEM, the island‐type character of the coating from grafted polyDADMAC was detected. The death of Gram‐negative bacteria Pseudomonas aeruginosa, Gram‐positive bacteria Staphylococcus aureus, and yeast (eukaryotes) Yarrowia lipolytica on the surface of the film with grafted polyDADMAC was demonstrated.