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Issue 11, 2007

Topological transformation of aggregates formed by an amphiphilic and truncated-cone-shaped codendrimer

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Abstract

Experimental evidence for a topological transformation of aggregates of an amphiphilic codendrimer from sphere to button structures via a toroidal intermediate is reported. The aggregates are produced in organic solvents which consist of water droplets covered by a continuous monolayer of the codendrimer. The transformations occur at a mean curvature which is equal to the spontaneous curvature. At this point, the contribution to Helfrich's bending free energy essentially comes from the Gaussian curvature of the continuous monolayers. Therefore, an aggregate of lower genus will transform to another aggregate of higher genus to further minimize the total free energy.

Graphical abstract: Topological transformation of aggregates formed by an amphiphilic and truncated-cone-shaped codendrimer

Article information


Submitted
26 Jun 2007
Accepted
12 Sep 2007
First published
19 Sep 2007

Soft Matter, 2007,3, 1372-1376
Article type
Communication

Topological transformation of aggregates formed by an amphiphilic and truncated-cone-shaped codendrimer

F. Yuan, X. Zhang, M. Yang, W. Wang, B. Minch, G. Lieser and G. Wegner, Soft Matter, 2007, 3, 1372 DOI: 10.1039/B709705K

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