MAGNETIC-FIELD EFFECT ON THE BENZOPHENONE-SODIUM DODECYL-SULFATE SYSTEM - INFLUENCE OF EXTERNAL ADDITIVES

Addition of small amphiphiles such as 1,4-dioxane is found to affect r adical recombination and escape rates in micelles such as sodium dodec yl sulphate (SDS). This has been demonstrated with the hydrogen-abstra cted product of triplet benzophenone as the probe molecule. This resul t has been interpreted on the basis of the ability of dioxane to form ''mixed'' micelles, which thereby affect the size, viscosity and refle ctivity of the boundary of SDS. Studies in presence of magnetic fields up to 15 kG show that the magnetic field effect remains unaffected by the addition of dioxane. This has been explained as due to the combin ed effect of size, viscosity and reflectivity of the boundary of the m icelle.