New Simple and Robust Method for Determination of Polarity of Deep Eutectic Solvents (DESs) by Means of Contact Angle Measurement
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 benzyldimet...
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MDPI AG
2022-06-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/13/4198 |
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| author | Łukasz Cichocki Dorota Warmińska Justyna Łuczak Andrzej Przyjazny Grzegorz Boczkaj |
| author_facet | Łukasz Cichocki Dorota Warmińska Justyna Łuczak Andrzej Przyjazny Grzegorz Boczkaj |
| author_sort | Łukasz Cichocki |
| collection | DOAJ |
| description | 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>E</mi><mi>T</mi></msub><mrow><mo>(</mo><mrow><mn>30</mn></mrow><mo>)</mo></mrow></mrow></semantics></math></inline-formula> 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. |
| first_indexed | 2024-03-09T10:26:21Z |
| format | Article |
| id | doaj.art-4854165933eb4fb187c95f1b44e1097c |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T10:26:21Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-4854165933eb4fb187c95f1b44e1097c2023-12-01T21:36:31ZengMDPI AGMolecules1420-30492022-06-012713419810.3390/molecules27134198New Simple and Robust Method for Determination of Polarity of Deep Eutectic Solvents (DESs) by Means of Contact Angle MeasurementŁukasz Cichocki0Dorota Warmińska1Justyna Łuczak2Andrzej Przyjazny3Grzegorz Boczkaj4Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, PolandDepartment of Physical Chemistry, Faculty of Chemistry, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, PolandDepartment of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, PolandDepartment of Natural Sciences, Kettering University, 1700 University Avenue, Flint, MI 48504, USAAdvanced Materials Center, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, PolandThe 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>E</mi><mi>T</mi></msub><mrow><mo>(</mo><mrow><mn>30</mn></mrow><mo>)</mo></mrow></mrow></semantics></math></inline-formula> 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.https://www.mdpi.com/1420-3049/27/13/4198DESspolarityhydrophobicitycontact anglesolvatochromismmaterials characterization |
| spellingShingle | Łukasz Cichocki Dorota Warmińska Justyna Łuczak Andrzej Przyjazny Grzegorz Boczkaj New Simple and Robust Method for Determination of Polarity of Deep Eutectic Solvents (DESs) by Means of Contact Angle Measurement Molecules DESs polarity hydrophobicity contact angle solvatochromism materials characterization |
| title | New Simple and Robust Method for Determination of Polarity of Deep Eutectic Solvents (DESs) by Means of Contact Angle Measurement |
| title_full | New Simple and Robust Method for Determination of Polarity of Deep Eutectic Solvents (DESs) by Means of Contact Angle Measurement |
| title_fullStr | New Simple and Robust Method for Determination of Polarity of Deep Eutectic Solvents (DESs) by Means of Contact Angle Measurement |
| title_full_unstemmed | New Simple and Robust Method for Determination of Polarity of Deep Eutectic Solvents (DESs) by Means of Contact Angle Measurement |
| title_short | New Simple and Robust Method for Determination of Polarity of Deep Eutectic Solvents (DESs) by Means of Contact Angle Measurement |
| title_sort | new simple and robust method for determination of polarity of deep eutectic solvents dess by means of contact angle measurement |
| topic | DESs polarity hydrophobicity contact angle solvatochromism materials characterization |
| url | https://www.mdpi.com/1420-3049/27/13/4198 |
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