Self-assembled films formed at the air - Water interface from CTAB/SDS mixtures with water-soluble polymers
(2009) In Langmuir 25(7). p.4047-4055- Abstract
We have investigated the spontaneous self-assembly of solid, mesostructured films that form at the air-solution interface on solutions containing a neutral water-soluble polymer and catanionic surfactant mixtures of hexadecyl-trimethylammonium bromide (CTAB) and sodium dodecylsulphate (SDS). The formation processes and structures were probed using neutron reflectivity, X-ray reflectivity, off-specular time-resolved scattering, and grazing incidence diffraction. The mesostructures of films prepared with polyethylene oxide, polyethylenimine, and polyacrylamide at various cationic/anionic surfactant molar ratios are compared. The results suggest that polymers having a weak interaction with the surfactants cause a depletion aggregation... (More)
We have investigated the spontaneous self-assembly of solid, mesostructured films that form at the air-solution interface on solutions containing a neutral water-soluble polymer and catanionic surfactant mixtures of hexadecyl-trimethylammonium bromide (CTAB) and sodium dodecylsulphate (SDS). The formation processes and structures were probed using neutron reflectivity, X-ray reflectivity, off-specular time-resolved scattering, and grazing incidence diffraction. The mesostructures of films prepared with polyethylene oxide, polyethylenimine, and polyacrylamide at various cationic/anionic surfactant molar ratios are compared. The results suggest that polymers having a weak interaction with the surfactants cause a depletion aggregation process that results in a lamellar phase, whereas polymers having a stronger interaction with the surfactants produce more complex mesostructures in the films.
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- author
- Edler, Karen J. LU ; Wasbrough, Matthew J. ; Holdaway, James A. LU and O'Driscoll, Benjamin M.D.
- publishing date
- 2009-04-07
- type
- Contribution to journal
- publication status
- published
- in
- Langmuir
- volume
- 25
- issue
- 7
- pages
- 9 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- scopus:65249180089
- ISSN
- 0743-7463
- DOI
- 10.1021/la802854d
- language
- English
- LU publication?
- no
- id
- 574f995c-f4a2-4636-b85b-a1b301ad3e50
- date added to LUP
- 2023-05-04 18:48:40
- date last changed
- 2023-06-09 15:57:46
@article{574f995c-f4a2-4636-b85b-a1b301ad3e50, abstract = {{<p>We have investigated the spontaneous self-assembly of solid, mesostructured films that form at the air-solution interface on solutions containing a neutral water-soluble polymer and catanionic surfactant mixtures of hexadecyl-trimethylammonium bromide (CTAB) and sodium dodecylsulphate (SDS). The formation processes and structures were probed using neutron reflectivity, X-ray reflectivity, off-specular time-resolved scattering, and grazing incidence diffraction. The mesostructures of films prepared with polyethylene oxide, polyethylenimine, and polyacrylamide at various cationic/anionic surfactant molar ratios are compared. The results suggest that polymers having a weak interaction with the surfactants cause a depletion aggregation process that results in a lamellar phase, whereas polymers having a stronger interaction with the surfactants produce more complex mesostructures in the films.</p>}}, author = {{Edler, Karen J. and Wasbrough, Matthew J. and Holdaway, James A. and O'Driscoll, Benjamin M.D.}}, issn = {{0743-7463}}, language = {{eng}}, month = {{04}}, number = {{7}}, pages = {{4047--4055}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Langmuir}}, title = {{Self-assembled films formed at the air - Water interface from CTAB/SDS mixtures with water-soluble polymers}}, url = {{http://dx.doi.org/10.1021/la802854d}}, doi = {{10.1021/la802854d}}, volume = {{25}}, year = {{2009}}, }