STUDY OF THE STRUCTURAL-DYNAMIC CHARACTERISTICS IN MIXTURES OF PETROLEUM AND SYNTHETIC OILS

Spin-probe EPR spectroscopy has shown that the introduction of synthet ic components of dioctylsebacate (DOS), dioctyladipate (DOA) and dioct ylphthalate (DOP) increases the phase heterogeneity, as indicated by t he change in the structural-dynamic properties of the medium. It has b een established that DOA, DOS and DOP react with the microstructures f ormed by aromatic hydrocarbons, changing their structure. With a conce ntration of only 5-10%, dioctyladipate forms fairly stable ''domains'' of pure DOA. Dioctylsebacate and dioctylphthalate change the structur e of native microformations, increasing their density in the 5% concen tration region, and they form their own microphase at higher concentra tions (>60%).