Biocide Coating from Polydiallyldimethylammonium Chloride—What Molecular Weight Should We Choose?

Biocidal compositions based on interpolyelectrolyte complexes and a low molecular weight antibiotic can become promising material for creating biocidal coatings, as they combine wash-off resistance dual action due to the biocide polycation. Molecular mass characteristics of polymers play an essential role in physics mechanical properties coatings. In this work, polydiallyldimethylammonium chloride (PDADMAC) coatings various weights are investigated assumptions made about optimal needed create antibacterial compositions. To study washing off moisture saturation gravimetric method was used, adhesive were studied by dynamometry. It has been established that increase affects but does not affect absorption adhesion mechanics All samples PDADMAC demonstrated exhibit same activity. Thus, when developing systems it must be taken into account order stable requirement use with high degree polymerization is necessary coating desorption control during wash off-but mandatory coating.