Self-assembly in some N-lauroyl-L-glutamate/water systems
(2002) In Langmuir 18(12). p.4699-4703- Abstract
- Acylglutamate is a divalent anionic surfactant whose properties are affected by its degree of neutralization. In this study, we present phase maps for aqueous systems of the potassium (LGP) and triethanolamine salts (LGT) of N-lauroyl L-glutamic acid, at different degrees of neutralization. A cubic phase forming between the isotropic micellar and the hexagonal phase was detected in both LGP/water and LGT/water systems. The stability of this cubic phase was promoted by increasing the degree of neutralization. The lattice parameters of the phase were determined by small-angle X-ray scattering (SAXS). SAYS spectra from samples of this cubic phase could be indexed to the crystallographic space group Pm3n. H-1 NAIR self-diffusion measurements... (More)
- Acylglutamate is a divalent anionic surfactant whose properties are affected by its degree of neutralization. In this study, we present phase maps for aqueous systems of the potassium (LGP) and triethanolamine salts (LGT) of N-lauroyl L-glutamic acid, at different degrees of neutralization. A cubic phase forming between the isotropic micellar and the hexagonal phase was detected in both LGP/water and LGT/water systems. The stability of this cubic phase was promoted by increasing the degree of neutralization. The lattice parameters of the phase were determined by small-angle X-ray scattering (SAXS). SAYS spectra from samples of this cubic phase could be indexed to the crystallographic space group Pm3n. H-1 NAIR self-diffusion measurements have also been performed in the isotropic micellar and cubic regions. The self-diffusion coefficient of the surfactant decreases with increasing its concentration. In the cubic phase, the self-diffusion is of the order of 10(-13) m(2) s(-1), demonstrating that the cubic phase consists of discrete micelles. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/335997
- author
- Kaneko, D ; Olsson, Ulf LU and Sakamoto, K
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Langmuir
- volume
- 18
- issue
- 12
- pages
- 4699 - 4703
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000176091900026
- scopus:0037062821
- ISSN
- 0743-7463
- DOI
- 10.1021/la0117653
- language
- English
- LU publication?
- yes
- id
- 258fbb39-0b2e-40d7-a146-252029a9ed8b (old id 335997)
- date added to LUP
- 2016-04-01 12:12:15
- date last changed
- 2022-03-13 06:44:58
@article{258fbb39-0b2e-40d7-a146-252029a9ed8b,
abstract = {{Acylglutamate is a divalent anionic surfactant whose properties are affected by its degree of neutralization. In this study, we present phase maps for aqueous systems of the potassium (LGP) and triethanolamine salts (LGT) of N-lauroyl L-glutamic acid, at different degrees of neutralization. A cubic phase forming between the isotropic micellar and the hexagonal phase was detected in both LGP/water and LGT/water systems. The stability of this cubic phase was promoted by increasing the degree of neutralization. The lattice parameters of the phase were determined by small-angle X-ray scattering (SAXS). SAYS spectra from samples of this cubic phase could be indexed to the crystallographic space group Pm3n. H-1 NAIR self-diffusion measurements have also been performed in the isotropic micellar and cubic regions. The self-diffusion coefficient of the surfactant decreases with increasing its concentration. In the cubic phase, the self-diffusion is of the order of 10(-13) m(2) s(-1), demonstrating that the cubic phase consists of discrete micelles.}},
author = {{Kaneko, D and Olsson, Ulf and Sakamoto, K}},
issn = {{0743-7463}},
language = {{eng}},
number = {{12}},
pages = {{4699--4703}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Langmuir}},
title = {{Self-assembly in some N-lauroyl-L-glutamate/water systems}},
url = {{http://dx.doi.org/10.1021/la0117653}},
doi = {{10.1021/la0117653}},
volume = {{18}},
year = {{2002}},
}