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Fu Q, Chen M, Pang W, Liu Z, Xu Z, Lei X. The Phase Equilibria of Natural Gas Hydrate in the Presence of 1,3-Dimethylcyclohexane and Octyl-β-D-glucopyranoside. Molecules 2024; 29:3604. [PMID: 39125008 PMCID: PMC11314095 DOI: 10.3390/molecules29153604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 07/29/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024] Open
Abstract
The thermodynamic effect of octyl-β-D-glucopyranoside (OGP) on the formation of methane-1,3-dimethylcyclohexane (DMCH) hydrate was studied in this work. The thermodynamic equilibrium hydrate formation pressures between 275.15 K and 283.15 K were measured by the isothermal pressure search method. Different OGP aqueous solutions (0, 0.1, and 1 wt%) were used in this work. The experimental results show that OGP had no obvious thermodynamic inhibition on methane-DMCH hydrate formation when its concentration was low (0.1 wt%), whereas it had an inhibition on methane-DMCH hydrate formation when its concentration was high (1 wt%). The phase equilibrium hydrate formation pressure of the methane-DMCH-OGP system is about 0.1 MPa higher than that of the methane-DMCH system. The dissociation enthalpies of methane hydrate in different solutions remained uniform, which indicates that OGP was not involved in methane-DMCH hydrate formation. This phenomenon is explained from the perspective of the molecular structure of OGP. As a renewable and biological nonionic surfactant, the concentration of OGP in the liquid phase is low, so OGP can be added to the methane-DMCH system without significant thermodynamic inhibition.
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Affiliation(s)
- Qiang Fu
- State Key Laboratory of Offshore Natural Gas Hydrate, China National Offshore Oil Corporation, Beijing 100028, China; (Q.F.); (W.P.); (X.L.)
- Research Institute of China National Offshore Oil Cooperation, China National Offshore Oil Corporation, Beijing 100028, China
| | - Mingqiang Chen
- State Key Laboratory of Offshore Natural Gas Hydrate, China National Offshore Oil Corporation, Beijing 100028, China; (Q.F.); (W.P.); (X.L.)
- Research Institute of China National Offshore Oil Cooperation, China National Offshore Oil Corporation, Beijing 100028, China
| | - Weixin Pang
- State Key Laboratory of Offshore Natural Gas Hydrate, China National Offshore Oil Corporation, Beijing 100028, China; (Q.F.); (W.P.); (X.L.)
- Research Institute of China National Offshore Oil Cooperation, China National Offshore Oil Corporation, Beijing 100028, China
| | - Zengqi Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Zhen Xu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Xin Lei
- State Key Laboratory of Offshore Natural Gas Hydrate, China National Offshore Oil Corporation, Beijing 100028, China; (Q.F.); (W.P.); (X.L.)
- Research Institute of China National Offshore Oil Cooperation, China National Offshore Oil Corporation, Beijing 100028, China
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Wang Y, Chen Z, Zhang E, Zhi L, Di Serio M, Wang G, Wang Y, Li X, Liu X, Huang Y. Aggregation Behavior and Application Properties of Novel Glycosylamide Quaternary Ammonium Salts in Aqueous Solution. Molecules 2024; 29:2749. [PMID: 38930813 PMCID: PMC11206093 DOI: 10.3390/molecules29122749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/04/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Amidation of lactobionic acid with N,N-dimethylaminopropyltriamine was conducted to obtain N-(3'-dimethylaminopropyl)-lactamido-3-aminopropane (DDLPD), which was quaternized with bromoalkanes of different carbon chain lengths to synthesize double-stranded lactosylamide quaternary ammonium salt N-[N'[3-(lactosylamide)]propyl-N'-alkyl] propyl-N,N-dimethyl-N-alkylammonium bromide (CnDDLPB, n = 8, 10, 12, 14, 16). The surface activity and the adsorption and aggregation behaviors of the surfactants were investigated via equilibrium surface tension, dynamic light scattering, and cryo-electron microscopy measurements in an aqueous solution. The application properties of the products in terms of wettability, emulsification, foam properties, antistatic, salt resistance, and bacteriostatic properties were tested. CnDDLPB exhibited a low equilibrium surface tension of 27.82 mN/m. With an increase in the carbon chain length, the critical micellar concentration of CnDDLPBD decreased. Cryo-electron microscopy revealed that all products except C8DDLPB formed stable monolayer, multi-layer, and multi-compartmental vesicle structures in an aqueous solution. C14DDLPB has the best emulsification performance on soybean oil, with a time of 16.6 min; C14DDLPB has good wetting and spreading properties on polytetrafluoroethylene (PTFE) when the length of carbon chain is from 8 to 14, and the contact angle can be lowered to 33°~40°; CnDDLPB has low foam, which is typical of low-foaming products; C8DDLPB and C10DDLPB both show good antistatic properties. C8DDLPB and C14DDLPB have good salt resistance, and C12DDLPB has the best antimicrobial property, with the inhibition rate of 99.29% and 95.28% for E. coli and Gluconococcus aureus, respectively, at a concentration of 350 ppm.
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Affiliation(s)
- Yunkai Wang
- College of Chemical Engineering and Technology, Taiyuan University of Science and Technology, Taiyuan 030024, China; (Y.W.); (Z.C.); (E.Z.); (G.W.); (Y.W.); (X.L.)
| | - Zeyu Chen
- College of Chemical Engineering and Technology, Taiyuan University of Science and Technology, Taiyuan 030024, China; (Y.W.); (Z.C.); (E.Z.); (G.W.); (Y.W.); (X.L.)
| | - Erzhuang Zhang
- College of Chemical Engineering and Technology, Taiyuan University of Science and Technology, Taiyuan 030024, China; (Y.W.); (Z.C.); (E.Z.); (G.W.); (Y.W.); (X.L.)
| | - Lifei Zhi
- College of Chemical Engineering and Technology, Taiyuan University of Science and Technology, Taiyuan 030024, China; (Y.W.); (Z.C.); (E.Z.); (G.W.); (Y.W.); (X.L.)
| | - Martino Di Serio
- Department of Chemical Sciences, University of Naples Federico II, 80138 Napoli, Italy;
| | - Guoyong Wang
- College of Chemical Engineering and Technology, Taiyuan University of Science and Technology, Taiyuan 030024, China; (Y.W.); (Z.C.); (E.Z.); (G.W.); (Y.W.); (X.L.)
| | - Yan Wang
- College of Chemical Engineering and Technology, Taiyuan University of Science and Technology, Taiyuan 030024, China; (Y.W.); (Z.C.); (E.Z.); (G.W.); (Y.W.); (X.L.)
| | - Xiaoming Li
- College of Chemical Engineering and Technology, Taiyuan University of Science and Technology, Taiyuan 030024, China; (Y.W.); (Z.C.); (E.Z.); (G.W.); (Y.W.); (X.L.)
| | - Xudong Liu
- Research Institute of Livestock and Aquatic Product Inspection, Shanxi Inspection and Testing Center, Taiyuan 030006, China;
| | - Ying Huang
- Taiyuan Hengdeyuan Animal Protection Technology Development Co., Ltd., Taiyuan 030003, China;
- Shanxi Livestock and Poultry Breeding Co., Ltd., Jinzhong 031800, China
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Lin LH, Huang YT. Glutamic acid-glucose Gemini surfactants: physico-chemical properties and effect on the dyeability of polyester fabric. TENSIDE SURFACT DET 2022. [DOI: 10.1515/tsd-2021-2396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In this study we used glutamic acid as a linking group and glucose, propylene glycol, and fatty alcohols as raw materials to prepare glutamic acid-glucose Gemini surfactants. Fourier transform infrared spectroscopy was used to verify the structures of the surfactants. We investigated their surface properties (surface tension, contact angles), and their effect on the fluorescence of pyrene. To test their potential application, we prepared emulsions with the surfactants and olive oil, and evaluated the emulsion stability with a particle size analyzer. We also investigated the ability to dye polyester fabrics in the presence of the glutamic acid-glucose-gemini surfactants. Among our synthesized materials, those with shorter alkyl chains exhibited better surface activities and emulsification properties, resulting in excellent dye uptake and leveling.
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Affiliation(s)
- Li-Huei Lin
- Department of Cosmetic Science , Vanung University , 1, Van Nung Road , Taoyuan City , Taiwan , ROC
| | - Ya-Ting Huang
- Department of Cosmetic Science , Vanung University , 1, Van Nung Road , Taoyuan City , Taiwan , ROC
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Studies on thermodynamics of micellization of imidazolium-based surface-active ionic liquid [C15mim][Br] in aqueous media: Effect of D(+)-Xylose and D(+)-Glucose. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Aslam J, Hussain Lone I, Ansari F, Aslam A, Aslam R, Akram M. Molecular binding interaction of pyridinium based gemini surfactants with bovine serum albumin: Insights from physicochemical, multispectroscopic, and computational analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 250:119350. [PMID: 33387804 DOI: 10.1016/j.saa.2020.119350] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/10/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
To study the interaction of the series of pyridinium based gemini surfactants (GS) (referred to as m-Py-m, m = 14, 16); 4,4'-(propane-1,3-diyl)bis(1-(2-(tetradecyloxy)-2-oxoethyl) dipyridinium chloride (14-Py-14), and 4,4'-(propane-1,3-diyl) bis(1-(2-(hexadecyloxy)-2-oxoethyl)dipyridinium chloride (16-Py-16) with bovine serum albumin (BSA), various physicochemical and spectroscopic tools such as tensiometry, steady-state fluorescence, synchronous fluorescence, pyrene fluorescence, UV-visible, far-UV circular dichroism (CD) were utilized at physiological pH (7.4) and 298 K in combination with computational molecular modeling analysis. The tensiometric results show significant modifications in interfacial and thermodynamic parameters for m-Py-m GS upon BSA combination, deciphering the gemini surfactant-BSA interaction. Steady-state fluorescence analysis evaluates the structural alterations of BSA with the addition of m-Py-m GS. The plots of Stern-Volmer, modified Stern-Volmer, and thermodynamic parameters were used to determine the binding type of m-Py-m GS to BSA. The synchronous fluorescence spectra state a mild effect of gemini surfactants on the emission intensity of tyrosine (Tyr) residues, on the other hand, tryptophan (Trp) residues showed a significant effect. Post addition of GS, the plot of pyrene fluorescence reveals the mild micropolarity fluctuations via the probe (pyrene) molecules encapsulated in BSA. UV-visible experiments support the complex formation between the BSA and m-Py-m GS. Far-UV CD measurements revealed the modifications in the secondary structure of protein produced by m-Py-m GS. Furthermore, we also used the computational molecular modeling for attaining deep insight into BSA and m-Py-m GS binding and the results are supported with our experimental results.
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Affiliation(s)
- Jeenat Aslam
- Department of Chemistry, College of Science, Yanbu-30799, Taibah University, Al-Madina, Saudi Arabia.
| | - Irfan Hussain Lone
- Department of Chemistry, College of Science, Yanbu-30799, Taibah University, Al-Madina, Saudi Arabia
| | - Farah Ansari
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202002, India
| | - Afroz Aslam
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202002, India
| | - Ruby Aslam
- Corrosion Research Laboratory, Department of Applied Chemistry, Faculty of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India
| | - Mohd Akram
- Department of Chemistry, Faculty of Science, Aligarh Muslim University, Aligarh 202002, India.
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6
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2-Hydroxy-1, 4-napthoquinone solubilization, thermodynamics and adsorption kinetics with surfactant. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.09.064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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7
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Wagay TA, Shergujri MA, Askari H. Mixed micellization behavior of benzyldimethylhexadecylammonium chloride with gemini surfactants and their applications in the synthesis of silver nanoparticles. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2019.1710186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Tariq Ahmad Wagay
- Department of Chemistry, North-Eastern Hill University, Shillong, India
| | | | - Hassan Askari
- Department of Chemistry, North-Eastern Hill University, Shillong, India
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8
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Krawczyk J. Temperature impact on the water-air interfacial activity of n-octyl and n-dodecyl-β-d-glucopyranosides. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.08.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Bao Y, Guo J, Ma J, Li M, Li X. Physicochemical and antimicrobial activities of cationic gemini surfactants with polyether siloxane linked group. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.06.049] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Lamichhane S, Bal Krishna KC, Sarukkalige R. Surfactant-enhanced remediation of polycyclic aromatic hydrocarbons: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 199:46-61. [PMID: 28527375 DOI: 10.1016/j.jenvman.2017.05.037] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 05/04/2017] [Accepted: 05/10/2017] [Indexed: 06/07/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are toxic, mutagenic and carcinogenic organic compounds that are widely present in the environment. The bioremediation of PAHs is an economical and environmentally friendly remediation technique, but it is limited because PAHs have low water solubility and fewer bioavailable properties. The solubility and bioavailability of PAHs can be increased by using surfactants to reduce surface tension and interfacial tension; this method is called surfactant-enhanced remediation (SER). The SER of PAHs is influenced by many factors such as the type and concentration of surfactants, PAH hydrophobicity, temperature, pH, salinity, dissolved organic matter and microbial community. Furthermore, as mixed micelles have a synergistic effect on PAH solubilisation, selecting the optimum ratio of mixed surfactants leads to effective PAH remediation. Although the use of surfactants inhibits microbial activities in some cases, this could be avoided by choosing an optimum combination of surfactants and a proper microbial community for the targeted PAH(s), resulting in up to 99.99% PAH removal. This article reviews the literature on SER of PAHs, including surfactant types, the synergistic effect of mixed micelles on PAH removal, the impact of surfactants on the PAH biodegradation process, factors affecting the SER process, and the mechanisms of surfactant-enhanced solubilisation of PAHs.
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Affiliation(s)
- Shanti Lamichhane
- Department of Civil Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
| | - K C Bal Krishna
- School of Computing Engineering and Mathematics, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia.
| | - Ranjan Sarukkalige
- Department of Civil Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
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Zhang T, Cui D, Mao J, Song C. Aggregation properties and thermodynamics of micellization of gemini surfactants with diamide groups and rigid spacers in water and water-organic solvent mixed media. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.04.078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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13
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Mańko D, Zdziennicka A, Jańczuk B. Surface and volumetric properties of n-octyl-β-d-glucopyranoside and rhamnolipid mixture. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.04.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Carbohydrate-surfactant interactions in aqueous and mixed organic solvents at various temperatures: Volumetric, compressibility and acoustical studies. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.02.078] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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15
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Zhou X, Zhang D. Transition from Micelle to Vesicle of a Novel Sugar-Based Surfactant Containing Trisiloxane. TENSIDE SURFACT DET 2016. [DOI: 10.3139/113.110433] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Vesicles form spontaneously in aqueous solution of a novel sugar-based surfactant containing trisiloxane [Si(3)N-GHA]. The transition was monitored among the monomer, micelle and vesicle through the variation of surface tension, accompanied by surface tension measurements. The vesicles of a trisiloxane containing sugar-based surfactant have been characterized by dynamic light scattering (DLS) and negative-stained transmission electron microscopy (TEM). The vesicle aggregation can be explained by the critical packing parameter derived from an analysis of chemical structure.
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Affiliation(s)
- Xiyang Zhou
- Department of Chemistry and Chemical Engineering , LuLiang University, Lvliang Shanxi 033001 , China
| | - Dianlong Zhang
- Department of Chemistry , Shanxi Datong University, Datong Shanxi, 037000 , P. R. China
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Akram M, Anwar S, Ansari F, Bhat IA, Kabir-ud-Din KUD. Bio-physicochemical analysis of ethylene oxide-linked diester-functionalized green cationic gemini surfactants. RSC Adv 2016. [DOI: 10.1039/c5ra28129f] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
A novel series of oxy-diester-functionalized gemini surfactants (Cm-E2O-Cm) were synthesized and a comprehensive analysis of their biophysicochemical properties was carried out.
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Affiliation(s)
- Mohd. Akram
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Sana Anwar
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Farah Ansari
- Department of Chemistry
- Aligarh Muslim University
- Aligarh-202002
- India
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Li Y, Zhang X, Li Y, Li C, Guo X. Micellization of glucose-based surfactants with different counter ions and their interaction with DNA. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.11.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Xu H, Song C, Fang Q, Huang Y, Xu H. Research of Surface Chemical Properties and Micellization Behavior of Sodium N-Lauroylglycine. TENSIDE SURFACT DET 2013. [DOI: 10.3139/113.110275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Amphoteric surfactant, sodium N-lauroylglycine, was synthesized and symbolized as SLG. The surface chemical properties and micelle behaviors of SLG in 0–0.5 mol · L−1 aqueous solution of sodium chloride were investigated by surface tension measurements at 298–313 K. The critical micelle concentrations (cmc) of pure surfactant were determined in 0–0.5 mol · L−1 sodium chloride aqueous solution. Fluorescence and micelle aggregation number (N
agg) measurements have been used to investigate the variations of micro-polarity and micellization behavior. The added NaCl has a tendency to increase the attractive interaction between the surfactant molecules in both the micellar phase and the adsorption layer. The Gibbs free energy of micellization (ΔG
m
0
) is negative for all investigated systems, and the thermodynamic parameters of SLG indicate that the micellization of SLG is entropy driven.
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Affiliation(s)
- Hujun Xu
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
| | - Chunli Song
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
| | - Qing Fang
- School of Chemical and Material Engineering, Jiangnan University, Wuxi, China
| | - Yaru Huang
- Zhejiang Zanyu Technology Co., Ltd. Hangzhou, Zhejiang
| | - Hao Xu
- Zhejiang Zanyu Technology Co., Ltd. Hangzhou, Zhejiang
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Mańko D, Zdziennicka A, Jańczuk B. Thermodynamic properties of adsorption and micellization of n-oktyl-β-D-glucopiranoside. Colloids Surf B Biointerfaces 2013; 114:170-6. [PMID: 24184537 DOI: 10.1016/j.colsurfb.2013.10.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 09/24/2013] [Accepted: 10/08/2013] [Indexed: 11/17/2022]
Abstract
Measurements of the surface tension, density and viscosity of aqueous solutions of n-oktyl-β-D-glucopiranoside (OGP) were made at 293 K. From the obtained results the Gibbs surface excess concentration of OGP at the water-air interface and its critical micelle concentration were determined. The Gibbs surface excess concentration of OGP used in the Gu and Zhu isotherm equation allowed us to determine the Gibbs standard free energy of OGP adsorption at the water-air interface. The Gibbs standard free energy of OGP adsorption was also determined on the basis of the Langmuir, Szyszkowski, Gamboa and Olea equations as well the surface tension of "hydrophobic" part of OGP and "hydrophobic" part-water interface tension. It appeared that there is an agreement between the values of Gibbs standard free energy of OGP adsorption at the water-air interface determined by using all the above mentioned methods. It also proved that standard free energy of OGP micellization determined from CMC is consistent with that obtained on the basis of the free energy of the interactions between the "hydrophobic" part of the OPG through the water phase.
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Affiliation(s)
- Diana Mańko
- Department of Interfacial Phenomena, Faculty of Chemistry, Maria Curie-Skłodowska University, Maria Curie-Skłodowska Sq. 3, 20-031 Lublin, Poland
| | - Anna Zdziennicka
- Department of Interfacial Phenomena, Faculty of Chemistry, Maria Curie-Skłodowska University, Maria Curie-Skłodowska Sq. 3, 20-031 Lublin, Poland.
| | - Bronisław Jańczuk
- Department of Interfacial Phenomena, Faculty of Chemistry, Maria Curie-Skłodowska University, Maria Curie-Skłodowska Sq. 3, 20-031 Lublin, Poland
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