Temperature Dependence of the Sizes of Tetradecyltrimethylammonium Bromide Micelles in Aqueous Solutions

By small-angle neutron scattering experiments at a concentration of c = 105.3 mM/dm3, a decrease of the size of tetradecyltrimethylammonium bromide micelles (C14H29N(CH3)3+Br-) in aqueous solutions as a function of increasing temperature was observed. It seems that the shape of the micelles is not, as usually assumed, spherical but is slightly anisometric.