A nuclear magnetic resonance (nmr) investigation of the micellar structure of a long-chain non-ionic surfactant
- 1 September 1984
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Pharmacy and Pharmacology
- Vol. 36 (9) , 565-568
- https://doi.org/10.1111/j.2042-7158.1984.tb04898.x
Abstract
Peak integrals, peak widths at half-height (Δν1/2), spin-lattice relaxation times (T1), and chemical shifts (δ) of the alkyl and oxyethylene protons of CH3(CH2)21[OCH2CH2]27OH (C22E27) were measured in D2O at various temperatures. The peak integrals, Δν1/2, and δ values of the alkyl protons showed a large dependence on temperature below 313K, while the values for the oxyethylene protons were unaffected by temperature. These observations were explained by considering an intrusion of some oxyethylene groups into the hydrocarbon core of the micelle.This publication has 15 references indexed in Scilit:
- A nuclear magnetic resonance (nmr) investigation of the micellar structure of a long-chain non-ionic surfactantJournal of Pharmacy and Pharmacology, 1984
- Evidence for the intrusion of polyoxyethylene into the hydrocarbon core of non-ionic surfactant micellesJournal of Pharmacy and Pharmacology, 1984
- Effects of structural variations of non-ionic surfactants on micellar properties and solubilization: variation of oxyethylene content on properties of C22 monoethersJournal of Pharmacy and Pharmacology, 1982
- Effects of structural variations of non-ionic surfactants on micellar properties and solubilization: surfactants containing very long hydrocarbon chainsJournal of Pharmacy and Pharmacology, 1981
- Nuclear magnetic relaxation of synthetic polymers in dilute solutionProgress in Nuclear Magnetic Resonance Spectroscopy, 1979
- Thermodynamical analysis of rotation of spin probes in a sodium dodecyl sulfate micelleJournal of the American Chemical Society, 1979
- A carbon-13 and proton nuclear magnetic resonance study on the structure and mobility of nonionic alkyl polyoxyethylene ether micellesThe Journal of Physical Chemistry, 1977
- Motion in nonionic surfactant micelles and mixed micelles with phospholipids. A carbon-13 spin-lattice relaxation study on p-tert-octylphenylpolyoxyethylene ethersThe Journal of Physical Chemistry, 1976
- The conformational state of surfactants in the solid state and in micellar form. A laser-excited Raman scattering studyThe Journal of Physical Chemistry, 1976
- Proton spin–lattice relaxation times in some non-ionic micellar solutionsJ. Chem. Soc. A, 1970