Micellar structure from comparison of X-ray and neutron small-angle scattering

Thomas Zemb , P. Charpin

X-ray scattering patterns of ionic micellar solutions contain both inter- and intramicellar interferences. We show that these two terms can be separated according to the method developed by Hayter and Penfold. Both X-ray and neutron scattering signals are predicted on an absolute scale by a unique model of chain packing. Examples of results obtained through an incomplete separation of intermicellar interferences are discussed using sodium octanoate and sodium dodecylsulfate as typical examples of direct ionic micelles.

Mots clés: colloids; neutron diffraction examination of liquids; organic compounds; sodium compounds; X ray diffraction examination of liquids

Domaines: Articles anciens

Thomas Zemb, P. Charpin. Micellar structure from comparison of X-ray and neutron small-angle scattering. Journal de Physique, 1985, 46 (2), pp.249-256. ⟨10.1051/jphys:01985004602024900⟩. ⟨jpa-00209964⟩