Abstract
We have synthesized the amide dendrons with diacetylene-containing periphery and the focal pyrene moiety to investigate their self-organization behavior in aqueous phase. We investigated the effect of the assembled structure of the dendron on the polymerizability of the peripheral diacetylene moiety and the possibility of the supramolecular transformation due to host-guest interactions between the dendron and β-CD. The second generation dendron with a focal pyrene group self-assembled into the fibrous aggregates in water. We observed a low degree of polymeization of diacetylene units upon photopolymerization from the fibrous aggregates possibly due to the amorphous nature of the hydrophobic core. After addition of β-CD into the aqueous solution of dendron 7, only a fraction of pyrenes of fibrous bundles could be included in β-CDs with maintaining a fibrous structure. We are currently carrying out a comprehensive study to understand the detailed mechanism of formation of different supramolecular structures with the modified amide dendrons and their supramolecular transformation so that we can provide a clear scope of the functional nanostructures which can be derived from selfassembly of the amide dendrons.
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