Surfactants and polymerizable surfactants based on room-temperature ionic liquids that form lyotropic liquid crystal phases with water and room-temperature ionic liquids
First Claim
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1. A polymerizable surfactant composition having the general formula:
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Abstract
A modular surfactant architecture based on room temperature ionic liquids (RTILs) has been developed that affords non-polymerizable and polymerizable amphiphiles that form lamellar (L), hexagonal (H) or bicontinuous cubic (Q) LLC phases when mixed with water or RTILs serving as the polar solvent. The amphiphiles are imidazolium salts having two or more imidazolium head groups joined by one or more spacers. Polymerization of the LLC assembly can produce polymeric materials having ordered nanopores, with the ordering of the pores determined by the LLC phase.
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24 Claims
- 1. A polymerizable surfactant composition having the general formula:
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6. A lyotropic liquid crystal system comprising
a surfactant having the composition given by
- 13. A cross-linked lyotropic liquid crystal (LLC) polymer comprising polymerizable surfactants which have been crosslinked, wherein the cross-linked polymerizable surfactants form a LLC phase and the polymerizable surfactants have the general formula:
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18. A method of making a cross-linked lyotropic liquid crystal (LLC) polymer, the method comprising the steps of:
a. preparing an LLC polymerization mixture comprising a plurality of a polymerizable surfactant, a polymerization initiator and a polar solvent selected from the group consisting of water, imidazolium based room temperature ionic liquids, and mixtures thereof, wherein the surfactant forms a lyotropic liquid crystal phase in combination with the solvent and the polymerizable surfactants has the general formula; - View Dependent Claims (19, 20, 21, 22)
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