Small-angle neutron scattering from aqueous micellar solutions of a nonionic surfactant as a function of temperature

摘要: Solutions of 0.029 M n-dodecyl hexa(oxyethylene glycol) monoether (C/sub 12/E/sub 6/) in D/sub 2/O have been investigated by small-angle neutron scattering at a series temperatures from 14.3 to 47.3/sup 0/C. The sample displays lower consolute temperature 47.4 +- 0.05/sup curves are fit best assuming that (1) spherical micelles present all and (2) the observed increases scattered intensity with increasing low-angle region due critical concentration fluctuations. angular dependence this can be approximated Ornstein-Zernike relation, correlation lengths obtained following power law on reduced (T/sub c/ - T)/T/sub c/. 5 figures, 2 tables.