Iz. Selim, CORRELATION BETWEEN DIELECTRIC-PROPERTIES AND CHEMICAL-CHANGES IN SOYBEAN OIL DERIVATIVES, Polymer-plastics technology and engineering, 36(1), 1997, pp. 145-152
Dielectric properties of soybean oil derivatives were measured at freq
uency bands from 10(5) to 10(7) Hz at different temperatures. Relaxati
on times tau, activation enthalpies Delta H, and entropy changes Delta
S for dielectric relaxation were calculated and related to the chemic
al changes of the samples. It was found that dielectric properties can
be used in differentiating between epoxidized and nonepoxidized oils,
and can help in distinguishing these kinds of oils and formoxy-hydrox
y derivatives.