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Liu D, Peng Y. Foaming and aggregation behaviours of polyethylene oxide and polyacrylamide in inhibiting mechanical entrainment of kaolinite in flotation using saline water. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Surface Dilatational Rheology of Carboxyl-Containing Dimethylsiloxane Oligomers in Langmuir Films at the Air-Water Interface. BIONANOSCIENCE 2021. [DOI: 10.1007/s12668-021-00868-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zhang M, Tu Z, He P, Hua W, Chen Y, Shi Z, Wei Z, Ren T, Zhang B. An efficient organosilane-modified polycarboxylate dispersant with excellent dispersing performance and superior wettability for tebuconazole suspension concentrate. NEW J CHEM 2021. [DOI: 10.1039/d1nj01899j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The dispersion stability and wettability of suspension concentrates are beneficial for improvement of the utilization rate of pesticides.
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Affiliation(s)
- Mingqian Zhang
- Shanghai Engineering Research Center of Green Energy Chemical Engineering, The Key Laboratory of Resource Chemistry of Ministry of Education, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, P. R. China
| | - Zhenbei Tu
- Shanghai Engineering Research Center of Green Energy Chemical Engineering, The Key Laboratory of Resource Chemistry of Ministry of Education, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, P. R. China
| | - Penghui He
- Shanghai Engineering Research Center of Green Energy Chemical Engineering, The Key Laboratory of Resource Chemistry of Ministry of Education, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, P. R. China
| | - Wendong Hua
- Shanghai Engineering Research Center of Green Energy Chemical Engineering, The Key Laboratory of Resource Chemistry of Ministry of Education, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, P. R. China
| | - Ying Chen
- Shanghai Engineering Research Center of Green Energy Chemical Engineering, The Key Laboratory of Resource Chemistry of Ministry of Education, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, P. R. China
| | - Zefeng Shi
- Shanghai Engineering Research Center of Green Energy Chemical Engineering, The Key Laboratory of Resource Chemistry of Ministry of Education, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, P. R. China
| | - Zhenli Wei
- Shanghai Engineering Research Center of Green Energy Chemical Engineering, The Key Laboratory of Resource Chemistry of Ministry of Education, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, P. R. China
| | - Tianrui Ren
- Shanghai Engineering Research Center of Green Energy Chemical Engineering, The Key Laboratory of Resource Chemistry of Ministry of Education, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, P. R. China
| | - Bo Zhang
- Shanghai Engineering Research Center of Green Energy Chemical Engineering, The Key Laboratory of Resource Chemistry of Ministry of Education, College of Chemistry and Materials Science, Shanghai Normal University, 100 Guilin Road, Shanghai, 200234, P. R. China
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Chen H, Tan J. Aggregation Behavior and Intermolecular Interaction of Cationic Trisiloxane Surfactants: Effects of Unsaturation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:14582-14588. [PMID: 33211964 DOI: 10.1021/acs.langmuir.0c02332] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Imidazolium/pyridinium-based trisiloxane surfactants containing a phenyl or vinyl group in the hydrophobic siloxane chain, bis(vinyldimethylsiloxy)methylsilylpropyl-pyridinium chloride (Vi-Si3pyrCl), bis(vinyldimethylsiloxy)methylsilylpropyl-imidazolium chloride (Vi-Si3minCl), and bis(phenyldimethylsiloxy)methylsilylpropylimidazolium chloride (Ph-Si3minCl), were synthesized and confirmed by nuclear magnetic resonance (NMR) (1H, 13C, and 29Si NMR), mass spectrometry, and Fourier transform infrared spectrometry. The effect of the phenyl/vinyl group on their micellization behavior was studied by surface tension, electric conductivity, dynamic light scattering, 2D nuclear Overhauser effect spectroscopy (NOESY) NMR, and transmission electron microscopy. Owing to the hydrophobicity of the siloxane groups and cationic head groups, the critical micelle concentration (cmc) values follow the order Ph-Si3minCl < Vi-Si3pyrCl < Vi-Si3minCl < Si3pyrCl. Ph-Si3minCl has a larger γcmc value, resulting from the introduction of the phenyldimethylsiloxy unit (π-π stacking interaction). The β values of Vi-Si3minCl and Ph-Si3minCl increase with the increase in temperature, which is attributed to the intermolecular interaction which hinders the association of Cl- with the imidazolium ring and confirmed by 2D NOESY NMR. In aqueous solutions, the investigated cationic trisiloxane surfactants can self-assemble into spherical aggregates.
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Affiliation(s)
- Hao Chen
- School of Chemical and Environmental Engineering, Jiujiang University, Jiujiang, Jiangxi 332005, China
| | - Jinglin Tan
- School of Chemical and Environmental Engineering, Jiujiang University, Jiujiang, Jiangxi 332005, China
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Zhou X, Bai Y, Guo L, Wang G. Effect of siloxane backbone length on the physicochemical properties of gluconamide-modified polysiloxane surfactants. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113355] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Bai Y, Li J, Tai X, Wang G. Preparation, characterization, and properties of novel meglumine-based polysiloxane surfactants. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.01.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Tan J, He Z, Miao Y, Zhou D. Effect of Steric Hindrance on the Aggregation Behavior of Cationic Silicone Surfactants in Aqueous Solutions. J SOLUTION CHEM 2019. [DOI: 10.1007/s10953-019-00888-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Tan J, He Z, Miao Y, Lin M. Synthesis and Surface Properties of Polyether‐Based Silicone Surfactants with Different Siloxane Groups. J SURFACTANTS DETERG 2019. [DOI: 10.1002/jsde.12276] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jinglin Tan
- School of Chemical and Environmental EngineeringJiujiang University Jiujiang Jiangxi, 332005 China
- Jiangxi Province Engineering Research Center of Ecological Chemical IndustryJiujiang University Jiujiang Jiangxi, 332005 China
| | - Ziyan He
- School of Chemical and Environmental EngineeringJiujiang University Jiujiang Jiangxi, 332005 China
- Jiangxi Province Engineering Research Center of Ecological Chemical IndustryJiujiang University Jiujiang Jiangxi, 332005 China
| | - Yongxiang Miao
- School of Chemical and Environmental EngineeringJiujiang University Jiujiang Jiangxi, 332005 China
- Jiangxi Province Engineering Research Center of Ecological Chemical IndustryJiujiang University Jiujiang Jiangxi, 332005 China
| | - Miaomiao Lin
- School of Chemical and Environmental EngineeringJiujiang University Jiujiang Jiangxi, 332005 China
- Jiangxi Province Engineering Research Center of Ecological Chemical IndustryJiujiang University Jiujiang Jiangxi, 332005 China
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Bai Y, Liu H, Ma X, Tai X, Wang W, Du Z, Wang G. Synthesis, characterization and physicochemical properties of glycosyl-modified polysiloxane. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.06.052] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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