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The Structural Changes Induced by Anchored Polymers on Droplet and Bicontinuous Microemulsion

Published online by Cambridge University Press:  10 February 2011

Jyotsana Lal
Affiliation:
Laboratoire Leon Brillouin, CEN -Saclay, 91191 Gif-Sur-Yvette, Cedex, France.
Loic Auvray
Affiliation:
Laboratoire Leon Brillouin, CEN -Saclay, 91191 Gif-Sur-Yvette, Cedex, France.
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Abstract

Macroscopically, phase changes (induced due to change of curvature) were observed on the introduction of PEG (polyethyleneglycol) grafted on lipids (anchored polymers) in the Winsor phases of microemulsion. Replacing some of the surfactant in the monolayers of the micro-emulsion with polymer grafted lipids changes the interaction between droplets of micro- emulsion and a greater increase in the percentage of anchored polymer in the monolayer might even bring about structural changes. The results on winsor phases, droplet microemulsions and bicontinous phases with anchored polymers as studied by Small Angle Neutron Scattering (SANS) are reported below, together with the contrast variation techniques used to characterize average curvature in the system.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

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References

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