STUDY OF INTERACTION OF SURFACE-ACTIVE POLYMERS WITH ZINC OXIDE NANOPARTICLES SYNTHESIZED IN ULTRASONICALLY ASSISTED PLASMA DISCHARGE
Н. А. Булычев
Abstract
In this work, the synthesis of zinc oxide nanoparticles in plasma discharge was carried out according to two methods: under the action of ultrasound without cavitation and under the action of ultrasound in the developed cavitation regime. The interaction of the surface of nanoparticles in suspension with a water-soluble polymer polyethylene glycol was studied. The dynamics of adsorption of polyethylene glycol on the surface of nanoparticles was studied by changing the value of the surface potential. It was shown that the synthesis with cavitation results in a decrease of the size of nanoparticles and an increase of the stability and dispersity of the system, and also to more active sorption of the polymer on the surface. Results also infer that for zinc oxide nanoparticles synthesized under the action of ultrasonic cavitation, the thickness of the adsorption layers increased in comparison with nanoparticles synthesized without cavitation.