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Self‐Assembly of Diacetylene‐Bridged Phenylenevinylene Oligomers in Water and Organic Solvents

Self‐Assembly of Diacetylene‐Bridged Phenylenevinylene Oligomers in Water and Organic Solvents Rodlike π‐conjugated molecules in which two OPV fragments are connected through a diacetylene bond self‐assemble in aqueous and organic media. Optical spectroscopy and AFM measurements indicated that, in water, strong hydrophobic interactions between π‐cores promote aggregation into robust, uniform micellar structures. In contrast, in apolar solvents, a fibrilar morphology is obtained by coiling of columnar stacks. These stacks are formed in a nucleation‐elongation process with degrees of cooperativity of 0.006, that is influenced by the low rotation barriers around the σ‐bonds in the diacetylene linker. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ChemPlusChem Wiley

Self‐Assembly of Diacetylene‐Bridged Phenylenevinylene Oligomers in Water and Organic Solvents

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References (67)

Publisher
Wiley
Copyright
© 2019 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim
eISSN
2192-6506
DOI
10.1002/cplu.201900207
Publisher site
See Article on Publisher Site

Abstract

Rodlike π‐conjugated molecules in which two OPV fragments are connected through a diacetylene bond self‐assemble in aqueous and organic media. Optical spectroscopy and AFM measurements indicated that, in water, strong hydrophobic interactions between π‐cores promote aggregation into robust, uniform micellar structures. In contrast, in apolar solvents, a fibrilar morphology is obtained by coiling of columnar stacks. These stacks are formed in a nucleation‐elongation process with degrees of cooperativity of 0.006, that is influenced by the low rotation barriers around the σ‐bonds in the diacetylene linker.

Journal

ChemPlusChemWiley

Published: May 1, 2019

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