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Summary New compositions based on arsenic oxide nanoparticles and poly(vinyl chloride) (PVC) were prepared. Sufficient antibacterial activity has been achieved for Escherichia coli and Pseudomonas syringae. The antibacterial materials so obtained are non‐irritant. At the same time, the PVC‐based composites have high thermal stability as demonstrated by thermogravimetric analysis and aging of samples; crosslinking enhances thermal stability. Still further, we have determined scratch resistance in a microscratch tester. High scratch resistance has been demonstrated, including strong viscoelastic scratch recovery (the bottom of the groove goes up inside of 2 minutes).

Structure and several properties of AgNO3 and As2O3 doped polymer composites have been investigated, including their antibacterial activity against E. coli, S. aureus, C. albicans and S. epidermidis. New silver or arsenic doped polymer composites have been characterized by an X-ray diffraction (XRD), a scanning electron microscopy combined with an energy dispersive X-ray spectroscopy (SEM/EDS) and ion release studies. The antibacterial evaluation of each of the composite samples was conducted using S. aureus in the liquid broth culture, with 10, 20 and 30 % of liquid extract added to the bacterial culture. Control S. aureus stocks were used for comparison at each time period and were recorded at 100 % at each time period. For samples with the PLA plasticizer the bacterial viability was significantly reduced for each composition containing Ag/As and was similar for each dosage concentration.