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Gelled polymerizable microemulsions. 2. Microstructure

Stubenrauch, Cosima; Tessendorf, Renate; Salvati, Anna; Topgaard, Daniel LU ; Sottmann, Thomas; Strey, Reinhard and Lynch, Iseult (2008) In Langmuir 24(16). p.8473-8482
Abstract
Using bicontinuous microemulsions as templates opens a new field for the design of novel structures and thus novel materials, but has significant challenges due to the very small composition and temperature windows in which microemulsions are bicontinuous. In previous work we had shown that we can take a ternary base system (water-n-dodecane-C13/15E5), add monomer and cross-linker (N-isopropylacrylamide and N,N'-methylenebisacrylamide) to the water phase, and add a gelator (12-hydroxyoctadecanoic acid) to the oil phase while remaining in the one-phase region of the phase diagram. It Was also possible to allow the gelator to form an organogel by changing the temperature such that we crossed the sol-gel line, which fell within the one-phase... (More)
Using bicontinuous microemulsions as templates opens a new field for the design of novel structures and thus novel materials, but has significant challenges due to the very small composition and temperature windows in which microemulsions are bicontinuous. In previous work we had shown that we can take a ternary base system (water-n-dodecane-C13/15E5), add monomer and cross-linker (N-isopropylacrylamide and N,N'-methylenebisacrylamide) to the water phase, and add a gelator (12-hydroxyoctadecanoic acid) to the oil phase while remaining in the one-phase region of the phase diagram. It Was also possible to allow the gelator to form an organogel by changing the temperature such that we crossed the sol-gel line, which fell within the one-phase region. In this work, we show conclusively that addition of the monomers and the gelator does not affect the microemulsion microstructure and that, even in the gelled state, the polymerizable microemulsion is indeed bicontinuous. H-1 NMR self-diffusion, conductivity, and small-angle neutron scattering measurements all confirm the bicontinuous nature of the gelled polymerizable microemulsion. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Langmuir
volume
24
issue
16
pages
8473 - 8482
publisher
The American Chemical Society
external identifiers
  • wos:000258377900017
  • scopus:50849128797
ISSN
0743-7463
DOI
10.1021/la800918g
language
English
LU publication?
yes
id
1ecf8a40-1a16-4918-9acf-e432ee2848af (old id 1252748)
date added to LUP
2008-11-17 14:59:58
date last changed
2017-01-01 04:44:21
@article{1ecf8a40-1a16-4918-9acf-e432ee2848af,
  abstract     = {Using bicontinuous microemulsions as templates opens a new field for the design of novel structures and thus novel materials, but has significant challenges due to the very small composition and temperature windows in which microemulsions are bicontinuous. In previous work we had shown that we can take a ternary base system (water-n-dodecane-C13/15E5), add monomer and cross-linker (N-isopropylacrylamide and N,N'-methylenebisacrylamide) to the water phase, and add a gelator (12-hydroxyoctadecanoic acid) to the oil phase while remaining in the one-phase region of the phase diagram. It Was also possible to allow the gelator to form an organogel by changing the temperature such that we crossed the sol-gel line, which fell within the one-phase region. In this work, we show conclusively that addition of the monomers and the gelator does not affect the microemulsion microstructure and that, even in the gelled state, the polymerizable microemulsion is indeed bicontinuous. H-1 NMR self-diffusion, conductivity, and small-angle neutron scattering measurements all confirm the bicontinuous nature of the gelled polymerizable microemulsion.},
  author       = {Stubenrauch, Cosima and Tessendorf, Renate and Salvati, Anna and Topgaard, Daniel and Sottmann, Thomas and Strey, Reinhard and Lynch, Iseult},
  issn         = {0743-7463},
  language     = {eng},
  number       = {16},
  pages        = {8473--8482},
  publisher    = {The American Chemical Society},
  series       = {Langmuir},
  title        = {Gelled polymerizable microemulsions. 2. Microstructure},
  url          = {http://dx.doi.org/10.1021/la800918g},
  volume       = {24},
  year         = {2008},
}