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Fig. 6
TEM image showing the nanocomposite L phase of a polyol amphiphile (
inset
)
and CdS precipitated by diffusion H
2
SintotheLLCdopedwithCd
2+
ions. Partially
reproduced with permission from [36]. © 1996 by Wiley-VCH
60
◦
C, the hexagonal phase formed by this
hydrogen-bonded oligo(vinyl alcohol) is stable up to the boiling point of
water. As a result, surfactants of this type are likely broadly applicable as tem-
plating agents.
In some cases, it can be useful to leave the LLC phase template incorpo-
rated into the lattice. Often, the resulting organic/inorganic nanocomposite
materials can have properties that neither the template nor the inorganic lat-
tice have separately. For example, the incorporation of organic molecules into
an inorganic lattice can strengthen an otherwise fragile material, increase
thermal stability, enhance the separation or catalytic properties, or be used
to tune the electronic properties [38]. From this standpoint, the technique is
used not only to pattern, but also to anchor organic molecules in inorganic
materials for improved functionality.
an isotropic phase transition at
∼
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