New Simple and Robust Method for Determination of Polarity of Deep Eutectic Solvents (DESs) by Means of Contact Angle Measurement

Łukasz Cichocki; Dorota Warmińska; Justyna Łuczak; Andrzej Przyjazny; Grzegorz Boczkaj

doi:10.3390/molecules27134198

New Simple and Robust Method for Determination of Polarity of Deep Eutectic Solvents (DESs) by Means of Contact Angle Measurement

Abstract

The paper presents a new method for evaluating the polarity and hydrophobicity of deep eutectic solvents (DESs) based on the measurement of the DES contact angle on glass. DESs consisting of benzoic acid derivatives and quaternary ammonium chlorides–tetrabutylammonium chloride (TBAC) and benzyldimethylhexadecylammonium chloride (16-BAC)—in selected molar ratios were chosen for the study. To investigate the DESs polarity, an optical goniometer and an ET(30) solvatochromic scale based on Reichardt’s dye were used. The research demonstrated the high accuracy and precision of the developed procedure. The simplicity of the examination and the availability of basic equipment allow for the implementation of the developed method in routine investigations of DESs.

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Authors (5)

Łukasz Cichocki
Dorota Warmińska dr hab. inż.
Justyna Łuczak dr hab. inż.
Andrzej Przyjazny
- Kettering University, USA
Grzegorz Boczkaj dr hab. inż.

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Category:

Articles

Type:

artykuły w czasopismach

Published in:

MOLECULES no. 27,
ISSN: 1420-3049

Language:

English

Publication year:

2022

Bibliographic description:

Cichocki Ł., Warmińska D., Łuczak J., Przyjazny A., Boczkaj G.: New Simple and Robust Method for Determination of Polarity of Deep Eutectic Solvents (DESs) by Means of Contact Angle Measurement// MOLECULES -Vol. 27,iss. 13 (2022), s.4198-

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