NMR Studies of Nonionic Surfactants
Artikel i vetenskaplig tidskrift, 2013

NMR has contributed greatly to our current understanding of self-association, phase behaviour, and molecular dynamics in aqueous systems of oligo(ethylene oxide) mono-alkyl ether (CmEn) nonionic surfactants, which are extensively used in both basic scientific studies and technical applications as emulsifying agents and detergents. This review provides a comprehensive but concise overview of the various NMR techniques that have been applied to nonionic surfactants. We describe conventional experimental procedures, such as the measurement of quadrupole splittings, nuclear relaxation times, and self-diffusion coefficients to characterize liquid crystalline phases, micelles, and microemulsions, as well as more advanced imaging and diffusion-diffusion 2D correlation approaches to investigate the structure of phase-separated systems and the spatial organization of anisotropic liquid crystalline domains on the micro- to millimetre length scales.

Detergent

lyotropic

Nuclear magnetic resonance

homogeneous length-scale

induced multilamellar vesicles

Relaxation

curvature elastic properties

Molecular dynamics

nuclear-magnetic-resonance

liquid-crystal

glycol dodecyl ether

water self-diffusion

Translation

oil chain-length

tensor imaging mathematics

Self-diffusion

molecular-weight distributions

Författare

T. M. Ferreira

Diana Bernin

Göteborgs universitet

D. Topgaard

Annual Reports on NMR Spectroscopy

0066-4103 (ISSN)

Vol. 79 73-127

Ämneskategorier

Fysik

DOI

10.1016/b978-0-12-408098-0.00003-3