Multicomponent ionic liquid CMC prediction - Publikacja - MOST Wiedzy


Multicomponent ionic liquid CMC prediction


We created a model to predict CMC of ILs based on 704 experimental values published in 43 publications since 2000. Our model was able to predict CMC of variety of ILs in binary or ternary system in a presence of salt or alcohol. The molecular volume of IL (Vm), solvent-accessible surface (Sˆ), solvation enthalpy (DsolvGN), concentration of salt (Cs) or alcohol (Ca) and their molecular volumes (Vms and Vma, respectively) were chosen as descriptors, and Kernel Support Vector Machine (KSVM) and Evolutionary Algorithm (EA) as regression methodologies to create the models. Data was split into training and validation set (80/20) and subjected to bootstrap aggregation. KSVM provided better fit with average R2 of 0.843, and MSE of 0.608, whereas EA resulted in R2 of 0.794 and MSE of 0.973. From the sensitivity analysis it was shown that Vm and Sˆ have the highest impact on ILs micellization in both binary and ternary systems, however surprisingly in the presence of alcohol the Vm becomes insignificant/irrelevant. Micelle stabilizing or destabilizing influence of the descriptors depends upon the additives. Previous attempts at modelling the CMC of ILs was generally limited to small number of ILs in simplified (binary) systems. We however showed successful prediction of the CMC over a range of different systems (binary and ternary).


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Informacje szczegółowe

Publikacja w czasopiśmie
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
PHYSICAL CHEMISTRY CHEMICAL PHYSICS nr 19, wydanie 37, strony 2530 - 2531,
ISSN: 1463-9076
Rok wydania:
Opis bibliograficzny:
Kłosowska-Chomiczewska I., Artichowicz W., Preiss U., Jungnickel C.: Multicomponent ionic liquid CMC prediction// PHYSICAL CHEMISTRY CHEMICAL PHYSICS. -Vol. 19, iss. 37 (2017), s.2530-2531
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1039/c7cp05019d
Politechnika Gdańska

wyświetlono 23 razy

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