A
Asoka Weerawardena
Researcher at Commonwealth Scientific and Industrial Research Organisation
Publications - 21
Citations - 1585
Asoka Weerawardena is an academic researcher from Commonwealth Scientific and Industrial Research Organisation. The author has contributed to research in topics: Ionic liquid & Lyotropic. The author has an hindex of 16, co-authored 21 publications receiving 1463 citations. Previous affiliations of Asoka Weerawardena include RMIT University.
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Protic Ionic Liquids: Solvents with Tunable Phase Behavior and Physicochemical Properties
TL;DR: It was found that simple structural modifications provide a mechanism to manipulate, over a wide range, the temperature at which phase transitions occur and to specifically tailor physicochemical properties for potential end-use applications.
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Protic ionic liquids: physicochemical properties and behavior as amphiphile self-assembly solvents.
TL;DR: The physicochemical properties of 22 protic ionic liquids (PILs) and 6 protic molten salts, and the self-assembly behavior of 3 amphiphiles in the PILs, are reported; and the presence and extent of amphiphile self- assembly have been discussed in terms of the Gordon parameter.
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Many protic ionic liquids mediate hydrocarbon-solvent interactions and promote amphiphile self-assembly.
TL;DR: A large number of protic ionic liquids have been found to mediate solvent-hydrocarbon interactions and promote amphiphile self-assembly and Hexagonal, cubic, and lamellar lyotropic liquid crystalline phases were observed in PIL-hexadecyltrimethylammonium bromide systems.
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Nanostructured protic ionic liquids retain nanoscale features in aqueous solution while precursor Brønsted acids and bases exhibit different behavior
Tamar L. Greaves,Danielle F. Kennedy,Asoka Weerawardena,Nicholas M. K. Tse,Nigel Kirby,Calum J. Drummond +5 more
TL;DR: The nanoscale aggregates present in neat protic ionic liquids were shown to be stable in size on dilution to high concentrations of water, indicating that the water is localized in the ionic region and has little effect on the nonpolar domains.
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Protic Ionic Liquids and Ionicity
Bharathi Nuthakki,Tamar L. Greaves,Irena Krodkiewska,Asoka Weerawardena,M. Iko Burgar,Roger J. Mulder,Calum J. Drummond +6 more
TL;DR: In this paper, the physicochemical properties of three chosen PILs, namely, ethanolammonium acetate (EOAA), 2-methylbutylammonium formate (2MBAF), and pentylamium formates (PeAF), at the initial equimolar (stoichiometric) acid/base ratio and in the presence of excess acid and base.