Surface Activity, Wetting, and Aggregation of a Perfluoropolyether Quaternary Ammonium Salt Surfactant with a Hydroxyethyl Group
This paper reports the synthesis of a novel quaternary surfactant containing a hydroxyethyl group (PFPE-C) and the surface properties of its aqueous solution (investigated by comparisons with two structurally similar chemicals, dodecyl-(2-hydroxyethyl)-dimethylammonium chloride (DHDAC) and PFPE-A)....
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| Format: | Article |
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MDPI AG
2023-10-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/28/20/7151 |
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| author | Jiangxun Dou Jiaoyan Liu Yan Wang Lifei Zhi Jixian Shen Guoyong Wang |
| author_facet | Jiangxun Dou Jiaoyan Liu Yan Wang Lifei Zhi Jixian Shen Guoyong Wang |
| author_sort | Jiangxun Dou |
| collection | DOAJ |
| description | This paper reports the synthesis of a novel quaternary surfactant containing a hydroxyethyl group (PFPE-C) and the surface properties of its aqueous solution (investigated by comparisons with two structurally similar chemicals, dodecyl-(2-hydroxyethyl)-dimethylammonium chloride (DHDAC) and PFPE-A). The minimum surface tension (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>γ</mi><mrow><mi>C</mi><mi>M</mi><mi>C</mi></mrow></msub></mrow></semantics></math></inline-formula>) and critical micelle concentration (CMC) of the PFPE-C aqueous solution were 17.35 mN/m and 0.024 mmol/L, respectively. This study confirms that surfactants containing hydroxyethyl groups efficiently reduce the surface tension of aqueous solutions, and fluorocarbon surfactants exhibit better surface activity than ordinary hydrocarbon surfactants with similar structures. The micellization, aggregation, air-water interfacial adsorption, and wettability of PFPE-C aqueous solutions have been systematically investigated. Highly concentrated PFPE-C aqueous solutions exhibit good wettability on PTFE and paraffin films. Moreover, the aggregates of PFPE-C in the aqueous solution were clearly seen as vesicles on Cryo-TEM micrographs. Primary biodegradation results indicate that 19% of PFPC-C can be degraded within one week. |
| first_indexed | 2024-03-10T21:00:36Z |
| format | Article |
| id | doaj.art-5632674c387c479f8f9a999671fcd96a |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T21:00:36Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-5632674c387c479f8f9a999671fcd96a2023-11-19T17:33:30ZengMDPI AGMolecules1420-30492023-10-012820715110.3390/molecules28207151Surface Activity, Wetting, and Aggregation of a Perfluoropolyether Quaternary Ammonium Salt Surfactant with a Hydroxyethyl GroupJiangxun Dou0Jiaoyan Liu1Yan Wang2Lifei Zhi3Jixian Shen4Guoyong Wang5School of Chemical Engineering and Technology, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaSchool of Chemical Engineering and Technology, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaSchool of Chemical Engineering and Technology, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaSchool of Chemical Engineering and Technology, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaChina Research Institute of Daily Chemical Industry, Taiyuan 030001, ChinaSchool of Chemical Engineering and Technology, Taiyuan University of Science and Technology, Taiyuan 030024, ChinaThis paper reports the synthesis of a novel quaternary surfactant containing a hydroxyethyl group (PFPE-C) and the surface properties of its aqueous solution (investigated by comparisons with two structurally similar chemicals, dodecyl-(2-hydroxyethyl)-dimethylammonium chloride (DHDAC) and PFPE-A). The minimum surface tension (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>γ</mi><mrow><mi>C</mi><mi>M</mi><mi>C</mi></mrow></msub></mrow></semantics></math></inline-formula>) and critical micelle concentration (CMC) of the PFPE-C aqueous solution were 17.35 mN/m and 0.024 mmol/L, respectively. This study confirms that surfactants containing hydroxyethyl groups efficiently reduce the surface tension of aqueous solutions, and fluorocarbon surfactants exhibit better surface activity than ordinary hydrocarbon surfactants with similar structures. The micellization, aggregation, air-water interfacial adsorption, and wettability of PFPE-C aqueous solutions have been systematically investigated. Highly concentrated PFPE-C aqueous solutions exhibit good wettability on PTFE and paraffin films. Moreover, the aggregates of PFPE-C in the aqueous solution were clearly seen as vesicles on Cryo-TEM micrographs. Primary biodegradation results indicate that 19% of PFPC-C can be degraded within one week.https://www.mdpi.com/1420-3049/28/20/7151fluorocarbon surfactantquaternary ammonium saltsolution property |
| spellingShingle | Jiangxun Dou Jiaoyan Liu Yan Wang Lifei Zhi Jixian Shen Guoyong Wang Surface Activity, Wetting, and Aggregation of a Perfluoropolyether Quaternary Ammonium Salt Surfactant with a Hydroxyethyl Group Molecules fluorocarbon surfactant quaternary ammonium salt solution property |
| title | Surface Activity, Wetting, and Aggregation of a Perfluoropolyether Quaternary Ammonium Salt Surfactant with a Hydroxyethyl Group |
| title_full | Surface Activity, Wetting, and Aggregation of a Perfluoropolyether Quaternary Ammonium Salt Surfactant with a Hydroxyethyl Group |
| title_fullStr | Surface Activity, Wetting, and Aggregation of a Perfluoropolyether Quaternary Ammonium Salt Surfactant with a Hydroxyethyl Group |
| title_full_unstemmed | Surface Activity, Wetting, and Aggregation of a Perfluoropolyether Quaternary Ammonium Salt Surfactant with a Hydroxyethyl Group |
| title_short | Surface Activity, Wetting, and Aggregation of a Perfluoropolyether Quaternary Ammonium Salt Surfactant with a Hydroxyethyl Group |
| title_sort | surface activity wetting and aggregation of a perfluoropolyether quaternary ammonium salt surfactant with a hydroxyethyl group |
| topic | fluorocarbon surfactant quaternary ammonium salt solution property |
| url | https://www.mdpi.com/1420-3049/28/20/7151 |
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