Fluctuation Viscosity of a Solution of Wormlike Micelles
Kats E.I., Lebedev V.V., Muratov A.R.
Dynamic fluctuation phenomena in a volution of wormlike micelles are investigated. The anomalous fluctuation contribution to viscosity coefficients η^ι is calculated. This contribution is determined by nonlinear interaction of hydrodynamic modes with bending mode, describing the relaxation of the shape of micelles. At high frequencies r\f\ behaves as w-1/4. In the low-frequency limit rj/j does not depend on frequency and is of the order of (tp/Qn (i is the average distance between crosslinks of the micelles, fp is the persistent length, t) is the viscosity of the pure solvent). Therefore in the case > £ the value of tyj exceeds the bare viscosity «Iž