Study of Triton X-100 surfactant-UO2+2 aqueous system by positron annihilation technique

Positron annihilation parameters have been used as a chemical probe to study the microphase transitional behaviour and microstructural changes in the aqueous surfactant system of Triton X-100. The interactions of positronium atom (Ps) in the system are discussed in the presence of a polar solubilizate e.g. UO2+2, in terms of the kinetic model. From this investigation, the microenvironment of UO2+2 is elucidated. An independent fluoroescence spectroscopic assay of the UO2+2 ions in the micellar phase was made. These findings corroborate the information drawn from positron annihilation data. (author)