Laser diagnostics of reverse microemulsions: Influence of the size and shape of reverse micelles on the Raman spectrum on the example of water/AOT/cyclohexane system

Plastinin, Ivan V.; Burikov, Sergey; Dolenko, Tatiana A.

doi:10.1016/j.molliq.2020.115153

Cited by 11 publications

(6 citation statements)

References 53 publications

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“…In the process, monodisperse water droplets were surrounded by the monolayer interface composed of surfactants and co-surfactants and serve as nano reactors [113,114]. Dispersity, morphology, and size of the synthesized SNs could be effectively controlled in the reverse microemulsion process [115].…”

Section: Reverse Microemulsion Methodsmentioning

confidence: 99%

Emerging Applications of Silica Nanoparticles as Multifunctional Modifiers for High Performance Polyester Composites

et al. 2021

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Nano-modification of polyester has become a research hotspot due to the growing demand for high-performance polyester. As a functional carrier, silica nanoparticles show large potential in improving crystalline properties, enhancing strength of polyester, and fabricating fluorescent polyester. Herein, we briefly traced the latest literature on synthesis of silica modifiers and the resultant polyester nanocomposites and presented a review. Firstly, we investigated synthesis approaches of silica nanoparticles for modifying polyester including sol-gel and reverse microemulsion technology, and their surface modification methods such as grafting silane coupling agent or polymer. Then, we summarized processing technics of silica-polyester nanocomposites, like physical blending, sol-gel processes, and in situ polymerization. Finally, we explored the application of silica nanoparticles in improving crystalline, mechanical, and fluorescent properties of composite materials. We hope the work provides a guideline for the readers working in the fields of silica nanoparticles as well as modifying polyester.

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Section: Reverse Microemulsion Methodsmentioning

confidence: 99%

Emerging Applications of Silica Nanoparticles as Multifunctional Modifiers for High Performance Polyester Composites

et al. 2021

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“…The O-H stretching region consists of a broad band resulting from the population distribution of hydrogen-bonded water structures, which are expected to evolve as more water is added to the system. 6,11,50,51 Deconvolution of the O-H stretching band into Gaussian subbands allowed for the characterization of water structure. The carbonyl band revealed interactions of water with the solvating environment and developed a complete picture of how the PC bulk structure evolves to accommodate the solvation of water molecules.…”

Section: Raman Spectroscopymentioning

confidence: 99%

“…There has been significant study of the structure of water in systems with well-defined boundaries such as in confinement within reverse micelles 3,6 carbon nanotubes, 7,8 metal-organic frameworks, 9,10 and silica pores. 11 However, the study of water in disordered, dynamic environments such as binary mixtures has been more limited.…”

Section: Introductionmentioning

confidence: 99%

Structural evolution of water-in-propylene carbonate mixtures revealed by polarized Raman spectroscopy and molecular dynamics

Clark,

Bowling-Charles,

Proma

et al. 2023

Phys. Chem. Chem. Phys.

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“…41 Using a multistate model, these hydrogen bond configurations have been shown to be spectrally distinguishable and can be resolved by fitting the spectral region to a number of Gaussian profiles which characterize the hydrogen bond structure. 6,42,43,46 In this study, we evaluate the structure of dilute water in PC as the concentration is increased from cwater = 0.003 up to saturation (cwater = 0.296). Analysis of the O-H stretching and carbonyl regions of the Raman spectra reveals a hydrogen bond structure that is distinctly different from bulk water and highly concentration dependent.…”

Section: Introductionmentioning

confidence: 99%

Structural Evolution of Water-in-Propylene Carbonate Mixtures Revealed by Experimental Raman Spectroscopy and Molecular Dynamics

Clark,

Bowling-Charles,

Proma

et al. 2023

Preprint

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The liquid structure of systems wherein water is limited in concentration or through geometry is of great interest in various fields such as biology, materials science, and electrochemistry. Here, we present a combined polarized Raman and molecular dynamics investigation of the structural changes that occur as water is added incrementally to propylene carbonate (PC), a polar, aprotic solvent that is important in lithium-ion batteries. Polarized Raman spectra of PC solutions were collected for water mole fractions from 0.003 to 0.296, which encompasses the solubility range of water in PC. Analysis of the polarized carbonyl Raman band in conjunction with simulations demonstrated that the bulk structure of the solvent remained unperturbed upon the addition of water. Experimental spectra in the O-H stretching region were decomposed through Gaussian fitting into sub-bands and studies on dilute HOD in H2O. With the aid of simulations, we identified these different bands as water arrangements having different degrees of hydrogen bonding. The observed water structure within PC indicates that water tends to self-aggregate, forming a hydrogen bond network that is distinctly different from the bulk and dependent on concentration. For example, at moderate concentrations, the most likely aggregate structures are chains of water molecules, each with two hydrogen bonds on average.

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Laser diagnostics of reverse microemulsions: Influence of the size and shape of reverse micelles on the Raman spectrum on the example of water/AOT/cyclohexane system

Cited by 11 publications

References 53 publications

Emerging Applications of Silica Nanoparticles as Multifunctional Modifiers for High Performance Polyester Composites

Emerging Applications of Silica Nanoparticles as Multifunctional Modifiers for High Performance Polyester Composites

Structural evolution of water-in-propylene carbonate mixtures revealed by polarized Raman spectroscopy and molecular dynamics

Structural Evolution of Water-in-Propylene Carbonate Mixtures Revealed by Experimental Raman Spectroscopy and Molecular Dynamics

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