Phosphorylation of crumb rubber was carried out by the reaction of oxidative chlorophosphorylation and hydrolysis of the obtained modifier. The modified crumb rubber was studied by potentiometric titration using the method of various samples. The ionization constants of phosphorylated crumb rubber were calculated using the Henderson-Hasselbach equation

doi.org/10.32737/0005-2531-2023-3-18-25