Ecological Systems and Devices Annotation << Back Environmentally Safe Plasticizer for Polyvinyl Chloride Obtained from Renewable Sources of Raw Materials Mazina L.A., Aminova A.F., Supronenko D.A., Sukhareva I.A., Salmanova A.T Concerns about the toxicity of phthalates stimulate the search for environmentally safe plasticizers, which do not have a negative impact on public health. In the present work the effect of environmentally safe plasticizer epoxidized methyl ester of vegetable oil (EMERM) on the properties of plasticized PVC was investigated. It is established that EMERM is a compatible plasticizer and allows to obtain polymer material with lower density, hardness, better frost resistance, higher melt fl uidity and losses during high-temperature heating, in comparison with PVC plasticate obtained with DOP. It is shown that increasing the dosage of EMERM leads to a more noticeable decrease in strength and relative elongation. Increased losses and decrease in physical and mechanical properties with increasing the content of EMERM can limit its content in the composition of plasticized PVC, which should be considered in practice. The infl uence of the investigated plasticizers on the temperature dependence of mechanical properties of plasticized PVC has been studied by DMA method. The application of EMERM in the production of soft PVC products and materials is rational to increase their environmental safety and is promising for use in the polymer industry. Keywords: brittleness temperature; dioctyl phthalate; epoxidized methyl esters of vegetable oil; plasticizer; polyvinyl chloride DOI: 10.25791/esip.11.2023.1411 Pp. 32-38.