Build-up of thermoelectrets at phase transitions in fatty acids

Abstract

The thermotropic mesomorphism of different fatty acids is illustrated by the thermodielectric effect and by micro structural observations. The fatty acids which are studied (arachidic, lauric and elaidic acids) have an initial space charge. The thermodielectric effect is due to charge separation and consists in the appearance of noticeable variations of electric current intensity as a function of the temperature at phase transitions.

Influence of Thermal Neutrons on Fatty Acids with a Mesomorphic Behavior

“…6 These fatty acids are incapsulated by melt drawing into 25 µm-thick cells with transparent flat electrodes. 10,11 The irradiation were carried out at the VVR reactor, located at Magurele, Romania. The samples were exposed to a flow of A = 4.15 × 10 12 neutron/cm 2 thermal neutrons.…”