Surfactant for better tomorrow: applied aspect of surfactant aggregates from laboratory to industry

Sar, Pintu; Ghosh, Aniruddha; Scarso, Alessandro; Saha, Bidyut

doi:10.1007/s11164-019-04017-6

Cited by 110 publications

(42 citation statements)

References 116 publications

(116 reference statements)

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“…Even a small amount of surfactant (less than 0.5%) can make the fabric well wetted by the solution. Therefore, the surfactant concentration used in this study is sufficient to enhance the affinity of the fabrics in solution [ 40 ].…”

Section: Resultsmentioning

confidence: 99%

Chelating Fabrics Prepared by an Organic Solvent-Free Process for Boron Removal from Water

et al. 2021

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A chelating fabric was prepared by graft polymerization of glycidyl methacrylate (GMA) onto a nonwoven fabric, followed by attachment reaction of N-methyl-D-glucamine (NMDG) using an organic solvent-free process. The graft polymerization was performed by immersing the gamma-ray pre-irradiated fabric into the GMA emulsion, while the attachment reaction was carried out by immersing the grafted fabric in the NMDG aqueous solution. The chelating capacity of the chelating fabric prepared by reaction in the NMDG aqueous solution without any additives reached 1.74 mmol/g, which further increased to above 2.0 mmol/g when surfactant and acid catalyst were added in the solution. The boron chelation of the chelating fabric was evaluated in a batch mode. Fourier transform infrared spectrophotometer (FTIR) was used to characterize the fabrics. The chelating fabric can quickly chelate boron from water to form a boron ester, and a high boron chelating ability close to 18.3 mg/g was achieved in the concentrated boron solution. The chelated boron can be eluted completely by HCl solution. The regeneration and stability of the chelating fabric were tested by 10 cycles of the chelation-elution operations. Considering the organic solvent-free preparation process and the high boron chelating performance, the chelating fabric is promising for the boron removal from water.

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Section: Resultsmentioning

confidence: 99%

Chelating Fabrics Prepared by an Organic Solvent-Free Process for Boron Removal from Water

et al. 2021

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“…The micellization of surfactants has long been of interest to scientists around the world due to their wide application in various industries, especially cosmetics, pharmaceuticals, detergents, etc. [ 1 , 2 ]. In addition to the choice of surfactant to be used for specific purposes, the medium in which the micellization of this surfactant is studied is equally important.…”

Section: Introductionmentioning

confidence: 99%

The Additive Influence of Propane-1,2-Diol on SDS Micellar Structure and Properties

et al. 2021

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Micellar systems are colloids with significant properties for pharmaceutical and food applications. They can be used to formulate thermodynamically stable mixtures to solubilize hydrophobic food-related substances. Furthermore, micellar formation is a complex process in which a variety of intermolecular interactions determine the course of formation and most important are the hydrophobic and hydrophilic interactions between surfactant–solvent and solvent–solvent. Glycols are organic compounds that belong to the group of alcohols. Among them, propane-1,2-diol (PG) is a substance commonly used as a food additive or ingredient in many cosmetic and hygiene products. The nature of the additive influences the micellar structure and properties of sodium dodecyl sulfate (SDS). When increasing the mass fraction of propane-1,2-diol in binary mixtures, the c.m.c. values decrease because propane-1,2-diol is a polar solvent, which gives it the ability to form hydrogen bonds, decreasing the cohesivity of water and reducing the dielectric constant of the aqueous phase. The values of ΔGm0 are negative in all mixed solvents according to the reduction in solvophobic interactions and increase in electrostatic interaction. With the rising concentration of cosolvent, the equilibrium between cosolvent in bulk solution and in the formed micelles is on the side of micelles, leading to the formation of micelles at a lower concentration with a small change in micellar size. According to the 1H NMR, with the addition of propylene glycol, there is a slight shift of SDS peaks towards lower ppm regions in comparison to the D2O peak. The shift is more evident with the increase in the amount of added propane-1,2-diol in comparison to the NMR spectra of pure SDS. Addition of propane-1,2-diol causes the upfield shift of the protons associated with hydrophilic groups, causing the shielding effect. This signifies that the alcohol is linked with the polar head groups of SDS due to its proximity to the SDS molecules.

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“…The use of surfactants has been increasing due to their enormous applications in the field of chemistry. They belong to the organic compound group used in oil recovery, pharmaceuticals, nanoscience, biological activity, fabric softener, antibacterial and anti-foaming agents, and other technologies [1,2]. Gemini is categorized as a surfactant and was first used by Menger in 1990 [3].…”

Section: Introductionmentioning

confidence: 99%

Gemini Imidazolinium Surfactants: A Versatile Class of Molecules

Bhati¹,

Tripathy²,

Gupta³

2021

Colloids - Types, Preparation and Applications

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Gemini imidazolinium surfactants fascinated the researchers and many industries towards it due to their distinct molecular structure. It belongs to the cationic surfactant group. The variation in the physicochemical properties of the gemini surfactant can be achieved by changing the characteristics in the structure. There are several applications of imidazolinium such as antistatic agents, fabric softener that makes it a demanding surfactant in detergent industries as well as in the laundry industries due to the immense number of properties like dispersibility, viscosity, desirable storage stability, emulsification, critical micelle concentration and fabric conditioning etc. This book chapter discussed about the Gemini imidazolinium surfactants and its various properties, synthesis methods and applications in various fields.

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Surfactant for better tomorrow: applied aspect of surfactant aggregates from laboratory to industry

Cited by 110 publications

References 116 publications

Chelating Fabrics Prepared by an Organic Solvent-Free Process for Boron Removal from Water

Chelating Fabrics Prepared by an Organic Solvent-Free Process for Boron Removal from Water

The Additive Influence of Propane-1,2-Diol on SDS Micellar Structure and Properties

Gemini Imidazolinium Surfactants: A Versatile Class of Molecules

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