Abstract
A detailed study on the self-assembly of a naphthalene-monoimide (NMI)-containing amphiphile (A-1) in aqueous medium is reported. The amphiphile forms micelles at a lower concentration and, with an increase in concentration, the micelles are transformed into vesicles. A detailed thermodynamic study reveals that the micelle-to-vesicle transformation is a spontaneous and entropy driven process. In the presence of an electron donor, 1,5-dihydroxynaphthalene (DHN), the vesicles further transformed into tape-like aggregates. A-1 and DHN form a 1 : 1 charge-transfer complex as shown from the ITC and absorption spectroscopic data. The charge-transfer complexation was also found to be a thermodynamically favorable process. The tapes obtained from the charge-transfer complexes were found to be more conductive that of the vesicles. Various spectroscopic, microscopic, ITC, XRD, and other techniques were utilized to reveal the underlying self-assembly mechanism.
Original language | English |
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Pages (from-to) | 867-873 |
Number of pages | 7 |
Journal | ChemNanoMat |
Volume | 4 |
Issue number | 8 |
DOIs | |
State | Published - 1 Aug 2018 |
Externally published | Yes |
Keywords
- amphiphiles
- charge transfer
- naphthalene-monoimide
- self-assembly
- vesicles
ASJC Scopus subject areas
- Biomaterials
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Materials Chemistry