Abstract
Light scattering was measured for spinnable, viscoelastic solutions of tetradecyl- and hexadecyldimethylamine oxides (C14DAO, C16DAO). Dilute aqueous solutions of C14DAO and C16DAO displayed strong intermicellar correlation, while that in aqueous C14DAO solutions diminished by the addition of 0.2 M NaCl. Aqueous C14DAO solutions in 0.2 M NaCl belonged to the semidilute regime at micelle concentrations above 0.5 × 10-2 g·cm-3. The micellar contour length between pseudonetwork meshes formed by entangled rodlike micelles in the semidilute regime was longer at degree of ionization of 0.20.45. The pseudonetwork by more flexible rodlike micelles may be concluded to induce ductile failure spinnability and polymer-like viscoelasticity.
