Tenside Surfactants Detergents最新文献_第6页

An overview on eco-friendly polyglycerol esters of fatty acid, synthesis and applications 综述了环保型脂肪酸聚甘油酯的研究进展、合成及应用

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-10-20 DOI: 10.1515/tsd-2023-2509

Suruchi Damle, Chandu Madankar

{"title":"An overview on eco-friendly polyglycerol esters of fatty acid, synthesis and applications","authors":"Suruchi Damle, Chandu Madankar","doi":"10.1515/tsd-2023-2509","DOIUrl":"https://doi.org/10.1515/tsd-2023-2509","url":null,"abstract":"Abstract Polyglycerol esters (PEGs) which are non-ionic surfactants acting as emulsifiers, wetting agents and viscosity modifying agents are used in the cosmetic, pharmaceutical and food industries. They have been proposed as an alternative to ethoxylated glycol-based non-ionic surfactants due to safety issues. PGEs are composed of fatty acid, which is a lipophilic moiety, and polyglycerol, which is a hydrophilic moiety. They are synthesized by several methods, such as direct esterification of fatty acids and polyglycerols, chemical transesterification of fatty acid methyl esters and polyglycerol, enzymatic transesterification using Lipozyme 435, using glycerol carbonate as raw material, using microwave irradiation, etc. PGEs (Polyglycerol esters) are claimed to be green alternatives to the existing emulsifiers used in the chemical industry as the raw material used for synthesis is obtained from vegetable oils which are renewable, and therefore, eco-friendly surfactants for use in a broad number of applications including food, cosmetics, textiles and personal care. The major challenges in the synthesis of polyglycerol fatty acid esters are to increase yield and control the esterification level while minimising side reactions.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":"40 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135567491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transition from a foam-like to an onion-like nanostructure in water-rich L₃ phases 在富水L3相中从泡沫状纳米结构过渡到洋葱状纳米结构

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-10-16 DOI: 10.1515/tsd-2023-2559

Philipp Menold, Reinhard Strey, Stefan Roitsch, Natalie Preisig, Cosima Stubenrauch

{"title":"Transition from a foam-like to an onion-like nanostructure in water-rich L<sub>3</sub> phases","authors":"Philipp Menold, Reinhard Strey, Stefan Roitsch, Natalie Preisig, Cosima Stubenrauch","doi":"10.1515/tsd-2023-2559","DOIUrl":"https://doi.org/10.1515/tsd-2023-2559","url":null,"abstract":"Abstract In dilute water-surfactant systems L 3 phases are found in which bilayers interconnect to form a sample-spanning sponge-like structure. From our previous study of the system water/NaCl-AOT (sodium bis(2-ethylhexyl) sulfosuccinate) we know that a transition of this sponge-like structure to an oil-continuous foam-like structure occurs upon addition of minute amounts of oil (about 3 wt%, α = 0.03) in the L 3 channel at a constant surfactant mass fraction of γ = 0.15 and T = 25 °C. The aim of the present study was to verify if the same transition occurs at γ = 0.25. To achieve this goal, we determined the relevant part of the phase diagram and studied the electrical conductivities and viscosities within the narrow one-phase L 3 channel. Although the electrical conductivities and viscosities change qualitatively like those observed at γ = 0.15 we did not observe a sponge-like structure at γ = 0.25 in the oil-free system ( α = 0) with freeze-fracture electron microscopy (FFEM) and freeze fracture direct imaging (FFDI). Together with the FFEM/FFDI images and SANS/SAXS curves we provide experimental evidence for a structural transition with decreasing oil content from a thermodynamically stable foam-like to a thermodynamically stable onion-like nanostructure at γ = 0.25 rather than to a sponge-like structure as is the case at γ = 0.15.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136079359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The use of polyoxyethylene (20) cetyl ether in assessing the hydrophobicity of compounds of biomedical importance and in the process of drug release from microemulsions 聚氧乙烯(20)十六烷基醚在评价生物医学重要化合物疏水性和微乳药物释放过程中的应用

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-10-05 DOI: 10.1515/tsd-2023-2536

Nino Lominadze, Maya Sebiskveradze, Rusudan Chaladze, Natia Papuashvili, Tinatin Butkhuzi, Maka Alexishvili, Marina Rukhadze

{"title":"The use of polyoxyethylene (20) cetyl ether in assessing the hydrophobicity of compounds of biomedical importance and in the process of drug release from microemulsions","authors":"Nino Lominadze, Maya Sebiskveradze, Rusudan Chaladze, Natia Papuashvili, Tinatin Butkhuzi, Maka Alexishvili, Marina Rukhadze","doi":"10.1515/tsd-2023-2536","DOIUrl":"https://doi.org/10.1515/tsd-2023-2536","url":null,"abstract":"Abstract The creation and study of artificial membranes based on microemulsions is an important direction due to the similarity of the structure of both direct and reverse microemulsions with cell membranes. A microemulsion mobile phase prepared with a non-ionic surfactant in combination with a C18 type stationary phase creates a similar image of the cell membrane in a chromatographic column. In addition, the use of microemulsion systems to transport drugs with low bioavailability into the body can increase their bioavailability. The chromatographic behaviour of model substances of biomedical importance was investigated using micellar mobile phases containing polyoxyethylene (20) cetyl ether in biopartitioning micellar chromatography (BMC) in the concentration range of 1–5 %. Cholic acid was introduced into the polyoxyethylene (20) cetyl ether micellar mobile phase to approximate the structure of the cell membrane. The hydrophobicity of the model compounds was evaluated. Hydrophobicity indices in the micellar mobile phase with and without addition of cholic acid were compared. The release profile of promethazine hydrochloride from microemulsion systems with monomeric and polymeric surfactants was investigated. The kinetic properties of the release of promethazine hydrochloride from microemulsion systems were calculated. It was found that a microemulsion of polyoxyethylene (20) cetyl ether mixed with polyoxyethylene (4) lauryl ether reduced the release of promethazine hydrochloride in weight percent. The release of promethazine hydrochloride from microemulsions does not obey Fick’s diffusion but follows a non-Fick’s transport mechanism, as evidenced by the high values of the diffusion exponent ( n > 0.5).","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134948103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The interaction of ester functionalized amide gemini surfactants with polymers 酯功能化酰胺gemini表面活性剂与聚合物的相互作用

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-10-02 DOI: 10.1515/tsd-2023-2515

Yue Lei, Yue Liu, Yuheng Li, Xiaohao Lu, Haiyan Gao, Hujun Xu

引用次数: 0

Synthesis and surface properties of branched-chain tertiary fatty alcohol sulfate surfactants 支链叔脂肪醇硫酸盐表面活性剂的合成及表面性能

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-09-28 DOI: 10.1515/tsd-2023-2534

Qian Wang, Xu Li, Jinxiang Dong

{"title":"Synthesis and surface properties of branched-chain tertiary fatty alcohol sulfate surfactants","authors":"Qian Wang, Xu Li, Jinxiang Dong","doi":"10.1515/tsd-2023-2534","DOIUrl":"https://doi.org/10.1515/tsd-2023-2534","url":null,"abstract":"Abstract In this paper, anionic branched-chain tertiary fatty alcohol sulfate surfactants were synthesized from n -hexene and n -octene using selective olefin dimerization, hydration reaction (hydroxylation), and sulfur trioxide sulfation. The direct hydration reaction of the α-olefin dimer 2-butyl-1-octene with water as a model reaction was explored for the synthesis of branched-chain tertiary fatty alcohols. Two branched-chain tertiary fatty alcohol sulfate surfactants, namely C 12 -SBTAS and C 16 -SBTAS, with different carbon chain lengths, were synthesized by the sulfur trioxide sulfation method. Their structures were confirmed by various analytical techniques, including HPLC, FT-IR, HR-MS, and 1 H NMR. Equilibrium and dynamic surface tension, foaming, wetting, and emulsifying properties were compared with those of Guerbet cetyl alcohol sulfate (C 16 -SGAS). C 12 -SBTAS and C 16 -SBTAS exhibited good surface activity with equilibrium surface tension ( γ CMC ) values of 27.41 mN m −1 and 26.69 mN m −1 , respectively. They also had low foaming and rapid defoaming abilities, as well as good wetting and emulsifying properties, which match the application characteristics of typical branched-chain surfactants.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135420465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wetting behaviour of ionic surfactants on the aluminium foil 离子表面活性剂在铝箔上的润湿行为

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-09-27 DOI: 10.1515/tsd-2023-2541

Summi Rai, Bishnu Shau Rauniyar, Ajaya Bhattarai

{"title":"Wetting behaviour of ionic surfactants on the aluminium foil","authors":"Summi Rai, Bishnu Shau Rauniyar, Ajaya Bhattarai","doi":"10.1515/tsd-2023-2541","DOIUrl":"https://doi.org/10.1515/tsd-2023-2541","url":null,"abstract":"Abstract Aluminium foil is a versatile material used in various industries, but its inherent low wettability limits its application. Surfactant can be used as effective agents for enhancing the wettability, enabling improved surface interactions and performance. In this study, we investigated the wettability of anionic (SDS and AOT) and cationic (CTAB) surfactants prepared in water as well as in isopropanol-water solvents with the four different volume fractions (0.1, 0.2, 0.3 and 0.4) on aluminium foil surfaces by measuring the contact angle. As the volume fraction of isopropanol on aluminium foil increases, the contact angle of SDS, CTAB, and AOT increases whereas the surface free energy decreases, indicating the hydrophobic nature of the surface. This trend is observed with the increasing concentrations of various solvents used. The adhesion work exhibits a linear increase with alcohol surface tension. A curvilinear variation is observed in the plots between cos <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"> <m:mrow> <m:mi>θ</m:mi> </m:mrow> </m:math> $theta $ and 1/ <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"> <m:mrow> <m:msqrt> <m:msub> <m:mi>γ</m:mi> <m:mtext>SL</m:mtext> </m:msub> </m:msqrt> </m:mrow> </m:math> $sqrt{{gamma }_{text{SL}}}$ . The plots of adhesion work versus contact angles show non-linear variation. Additionally, the plot of cos <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\"> <m:mrow> <m:mi>θ</m:mi> </m:mrow> </m:math> $theta $ against the surface tension of alcohol and adhesion work against log C exhibit curvilinear variation. With these results, the article aims to provide valuable insights into the application of surfactants for improving the wettability of aluminium foil.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135537679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of surfactant concentration on selected quality parameters of fruit washing agents 表面活性剂浓度对水果清洗剂质量参数选择的影响

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-09-20 DOI: 10.1515/tsd-2023-2543

Zofia Hordyjewicz-Baran, Tomasz Wasilewski, Magdalena Zarębska, Artur Seweryn

引用次数: 0

Preparation, characterization, and stability of lipid nanoparticles including unsaturated lipids 脂质纳米颗粒的制备、表征和稳定性，包括不饱和脂质

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-09-20 DOI: 10.1515/tsd-2023-2544

Yeseul Park, Jin-Won Park

引用次数: 0

Simulation of adsorption at rotating disk 旋转圆盘吸附的模拟

4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-09-12 DOI: 10.1515/tsd-2023-2522

Milivoj Lovrić

{"title":"Simulation of adsorption at rotating disk","authors":"Milivoj Lovrić","doi":"10.1515/tsd-2023-2522","DOIUrl":"https://doi.org/10.1515/tsd-2023-2522","url":null,"abstract":"Abstract Diffusion-controlled adsorption at the rotating disk is calculated for Frumkin isotherm. The near equilibrium isotherms are simulated and their time components are analysed. The purpose of the work is to investigate the physical meanings of S-shaped isotherms that appear for strong attractions in the adsorbed layer. It is demonstrated that the surface coverage that is created gradually, by the diffusion process, consumes the concentration gradient of the dissolved surfactant in the diffusion layer. Once the equilibrium with the bulk of the solution is established, the driving force of diffusion-controlled adsorption vanishes and no additional adsorption is possible. The diffusion layer thickness on the rotating disk tends to the constant value and the flux depends only on the concentration of dissolved adsorbent at the disk surface. Hence, the equilibrium with the bulk of solution is established faster than at the stationary disk. This equilibrium takes an infinite amount of time to reach, but the system can approach close to the equilibrium within a definite period of time. The near equilibration time depends on the bulk concentration of surfactant. These relationships exhibit sharp maxima under the influence of attractions in the adsorbed layer.","PeriodicalId":22258,"journal":{"name":"Tenside Surfactants Detergents","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135825608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of tetrabutylammonium bromide based ionic liquid on the aggregation behavior of dodecyltrimethylammonium bromide in the range (293.15 K–313.15 K): acoustic and volumetric investigation 四丁基溴化铵离子液体对十二烷基三甲基溴化铵在(293.15 K - 313.15 K)范围内聚集行为的影响:声学和体积学研究

IF 1 4区工程技术

Tenside Surfactants Detergents Pub Date : 2023-09-01 DOI: 10.1515/tsd-2023-2523

H. Hooshyar, Rahmat Sadeghi

引用次数: 0