Mesophase structure-mechanical and ionic transport correlations in extended amphiphilic dendrons

Science
B-K ChoU Wiesner

Abstract

We have studied the self-assembly of amphiphilic dendrons extended with linear polyethylene oxide (PEO) chains and their ion complexes. Keeping the dendron core and linear PEO chain compatible allows for the combination of dendritic core-shell and conventional blockcopolymer characteristics for complex mesophase behavior. An unexpected sequence of crystalline lamellar, cubic micellar (Pm3n), hexagonal columnar, continuous cubic (Ia3d), and lamellar mesophases is observed. Multiple phase behavior within single compounds allows for the study of charge transport and mechanical property correlations as a function of structure. The results suggest an advanced molecular design concept for the next generation of nanostructured materials in applications involving charge transport.

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Citations

Aug 12, 2010·Journal of the American Chemical Society·Mihai PetercaVirgil Percec
Jul 28, 2011·Journal of the American Chemical Society·Takuma YasudaTakashi Kato
Nov 10, 2011·Journal of the American Chemical Society·Mihai PetercaAnnabelle Bertin
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Jun 29, 2012·Journal of the American Chemical Society·Takahiro IchikawaHiroyuki Ohno
Jan 1, 2009·Journal of the American Chemical Society·Virgil PercecPaul A Heiney
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Mar 25, 2009·Journal of the American Chemical Society·Virgil PercecPaul A Heiney
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