Ionic liquid nanostructure enables alcohol self assembly

作者: Thomas Murphy , Robert Hayes , Silvia Imberti , Gregory G. Warr , Rob Atkin

DOI: 10.1039/C6CP01739H

关键词:

摘要: Weakly structured solutions are formed from mixtures of one or more amphiphiles and a polar solvent (usually water), often contain additional organic components. They solvophobic aggregates association structures with incomplete segregation components, which leads to poorly defined interfacial region significant contact between the aggregated hydrocarbon groups. The length scales, polydispersity, complexity ill-defined in weakly makes them difficult probe experimentally, obscures understanding their formation stability. In this work we nanostructure homogenous binary ionic liquid (IL) propylammonium nitrate (PAN) octanol as function composition using neutron diffraction atomistic empirical potential structure refinement (EPSR) fits. These experiments reveal why forms PAN but not water, mechanism by stabilises assemblies, how aggregate morphologies evolve concentration. This new provides insight into general stabilisation mechanisms structural features mixtures, reveals pathways for identifying molecular liquids that likely facilitate aggregation non-traditional amphiphiles.

参考文章(83)
Veronika Fischer, Julien Marcus, Didier Touraud, Olivier Diat, Werner Kunz, Toward surfactant-free and water-free microemulsions. Journal of Colloid and Interface Science. ,vol. 453, pp. 186- 193 ,(2015) , 10.1016/J.JCIS.2015.04.069
L.M. Varela, T. Méndez-Morales, J. Carrete, V. Gómez-González, B. Docampo-Álvarez, L.J. Gallego, O. Cabeza, O. Russina, Solvation of molecular cosolvents and inorganic salts in ionic liquids: A review of molecular dynamics simulations Journal of Molecular Liquids. ,vol. 210, pp. 178- 188 ,(2015) , 10.1016/J.MOLLIQ.2015.06.036
Karen J. Edler, Daniel T. Bowron, Combining wide-angle and small-angle scattering to study colloids and self-assembly Current Opinion in Colloid & Interface Science. ,vol. 20, pp. 227- 234 ,(2015) , 10.1016/J.COCIS.2015.07.002
Aaron Elbourne, Samuel Cronshaw, Kislon Voïtchovsky, Gregory G. Warr, Rob Atkin, Near surface properties of mixtures of propylammonium nitrate with n-alkanols 1. Nanostructure. Physical Chemistry Chemical Physics. ,vol. 17, pp. 26621- 26628 ,(2015) , 10.1039/C5CP04786B
Andrew Dolan, Rob Atkin, Gregory G. Warr, The origin of surfactant amphiphilicity and self-assembly in protic ionic liquids Chemical Science. ,vol. 6, pp. 6189- 6198 ,(2015) , 10.1039/C5SC01202C
James J. Towey, Alan K. Soper, Lorna Dougan, What happens to the structure of water in cryoprotectant solutions Faraday Discussions. ,vol. 167, pp. 159- 176 ,(2013) , 10.1039/C3FD00084B
Xiaohong Cui, Shizhen Mao, Maili Liu, Hanzhen Yuan, Youru Du, Mechanism of surfactant micelle formation. Langmuir. ,vol. 24, pp. 10771- 10775 ,(2008) , 10.1021/LA801705Y
Robert Hayes, Silvia Imberti, Gregory G. Warr, Rob Atkin, Pronounced sponge-like nanostructure in propylammonium nitrate Physical Chemistry Chemical Physics. ,vol. 13, pp. 13544- 13551 ,(2011) , 10.1039/C1CP21080G