Aqueous solutions of non-ionic amphiphile C16E7 (=C16H33(OC2H4)7OH) are known to form 'wormlike micelles', whose static properties are analogously understood as chain-like polymers. However, their dynamical properties are different from those of polymers because the micelles not only entangle but also fuse each other. In order to clarify collective motions of the wormlike micelles, neutron spin echo measurements were carried out. Observed correlation functions were explained by a stretched exponential function with an index of 3/4. The obtained relaxation rates obeyed Q8/3 as Zilman and Granek (Phys. Rev. Lett. 77 (1996) 4788) expected for the one-dimensional polymer-like model.
|Number of pages||3|
|Journal||Journal of Physics and Chemistry of Solids|
|Publication status||Published - 1999|
|Event||Proceedings of the 1998 7th ISSP International Symposium Frontiers in Neutron Scattering Research (ISSP7) - Tokyo, Jpn|
Duration: 1998 Nov 24 → 1998 Nov 27