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Thematische Bibliographien / PURE SOLVENT MEDIA

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Auswahl der wissenschaftlichen Literatur zum Thema „PURE SOLVENT MEDIA“

Autor: Grafiati

Veröffentlicht am 18. Mai 2024

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Zeitschriftenartikel zum Thema "PURE SOLVENT MEDIA"

1

Khokarale, Santosh Govind, Piotr Jablonski, Dariush Nikjoo, et al. "Poly (Vinylidene Difluoride) Polymer in 1-Ethyl-3-methylimidazolium Acetate and Acetic Acid Containing Solvents: Tunable and Recoverable Solvent Media to Induce Crystalline Phase Transition and Porosity." Sustainable Chemistry 3, no. 4 (2022): 455–74. http://dx.doi.org/10.3390/suschem3040028.

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In this report, 1-ethyl-3-methylimidazolium acetate, [EMIM][AcO] ionic liquid (IL) and acetic acid (AA) comprised solvents were used for the thermal treatment of poly (vinylidene difluoride), PVDF. Here, besides the various combinations of IL and AA in solvents, the pure IL and AA were also applied as a solvent upon thermal treatments. The samples obtained after the treatment were analysed for structural and crystalline phase changes, porosity, and molecular weight distribution with various analytical techniques. The Kamlet-Taft parameters measurement of the IL and AA containing solvents with

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2

Bhattarai, Ajaya, Kavita Pathak, and Bikash Dev. "Micellization behavior of mixed surfactants in pure water and methanol-water mixed solvent media by density methods." BIBECHANA 13 (December 3, 2015): 114–20. http://dx.doi.org/10.3126/bibechana.v13i0.13887.

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The properties of anionic-rich and cationic-rich mixtures of dodecyltrimethylammonium bromide (DTAB) and sodium dodecylsulfate (SDS) in pure water and methanol-water mixed solvent media were studied using density measurements at room temperature. The results showed that density increases with increasing concentration of surfactant mixture over the entire concentration range investigated in pure water and in the given mixed solvent media and which are found to decrease with an increase in the volume fraction of methanol in the solvent composition. The critical micelle concentration increases wi

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3

Journal, Baghdad Science. "Study the Effect of solvent on the Optical Properties Performance of active polymeric laser media." Baghdad Science Journal 4, no. 3 (2007): 387–92. http://dx.doi.org/10.21123/bsj.4.3.387-392.

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The paper include studies the effect of solvent of dye doped in polymeric laser sample which manufactured in primo press way, which is used as an active (R6G) tunable dye lasers. The remarks show that, when the viscosity of the solvent (from Pure Water to Ethanol), for the same concentration and thickness of the performance polymeric sample is increased, the absorption spectrum is shifts towards the long wave length (red shift), & towards short wave length (blue shift) for fluorescence spectrum, also increased the quantum fluorescence yield. The best result we obtained for the quantum fluo

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4

Ghigo, Giovanni, Matteo Bonomo, Achille Antenucci, Chiara Reviglio, and Stefano Dughera. "Copper-Free Halodediazoniation of Arenediazonium Tetrafluoroborates in Deep Eutectic Solvents-like Mixtures." Molecules 27, no. 6 (2022): 1909. http://dx.doi.org/10.3390/molecules27061909.

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Deep Eutectic Solvent (DES)-like mixtures, based on glycerol and different halide organic and inorganic salts, are successfully exploited as new media in copper-free halodediazoniation of arenediazonium salts. The reactions are carried out in absence of metal-based catalysts, at room temperature and in a short time. Pure target products are obtained without the need for chromatographic separation. The solvents are fully characterized, and a computational study is presented aiming to understand the reaction mechanism.

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5

Hirotsu, Shunsuke. "Phase Transition of a Polymer Gel in Pure and Mixed Solvent Media." Journal of the Physical Society of Japan 56, no. 1 (1987): 233–42. http://dx.doi.org/10.1143/jpsj.56.233.

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6

Minò, Antonio, Giuseppe Cinelli, Francesco Lopez, and Luigi Ambrosone. "Optical Behavior of Nile Red in Organic and Aqueous Media Environments." Applied Sciences 13, no. 1 (2023): 638. http://dx.doi.org/10.3390/app13010638.

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A simple model is proposed to calculate the dimerization constant of a dye in non-aqueous solvents. Alkan-1ols of the formula H–(CH2)n–OH are used to study the spectroscopic behavior of Nile Red dye. The number n varied from 1 to 8 to modulate the medium hydrophobicity. Generally, Nile red is used to localize lipid droplets within cells. This molecule is non-fluorescent in water and other polar solvents but undergoes fluorescence enhancement and large absorption and emission blue shifts in non-polar environments. The calculated equilibrium constants suggest that the aggregation process is solv

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7

Hassan, Ahmed, H. A. Azab, S. A. El Gyar, and Z. A. Khafagy. "Medium effect on the second-stage dissociation constant of N-(2-acetamido)imino diacetic acid (H2ADA)." Canadian Journal of Chemistry 70, no. 6 (1992): 1684–87. http://dx.doi.org/10.1139/v92-211.

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The second-stage dissociation constant values of N-(2-acetamido)imino diacetic acid (H2ADA) were determined at 25 ± 0.1 °C by potentiometric titration in different mixed-solvent mixtures (methanol, ethanol, dimethylformamide (DMF), dimethyl sulfoxide (DMSO), acetone, and dioxane). It was observed that the pKa value is slightly influenced as the solvent is enriched in methanol and ethanol, and remains practically constant in the presence of different amounts of DMF and DMSO. A prounounced change in the pKa value was observed as the solvent is enriched in acetone or dioxane. These results are di

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8

Su, Chien-You, Han-Liou Yi, Li-Duan Tsai, Ming-Chou Chen, and Chi-Chung Hua. "Solution properties of imidazolium-based amphiphilic polyelectrolyte in pure- and mixed-solvent media." Physical Chemistry Chemical Physics 21, no. 7 (2019): 3960–69. http://dx.doi.org/10.1039/c8cp07027j.

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9

Bhattarai, Ajaya, Sujit Kumar Shah, Ashok Kumar Yadav, and Janak Adhikari. "Effect of solvent composition on the critical micelle concentration of sodium deoxycholate in ethanol-water mixed solvent media." BIBECHANA 9 (December 10, 2012): 63–68. http://dx.doi.org/10.3126/bibechana.v9i0.7176.

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The precise measurement of the specific conductivity of sodium deoxycholate in pure water and ethanolwater mixed solvent media containing 0.10 and 0.20 volume fraction of ethanol at 303.15 K are reported. The concentration were varied from ~ 0.01 mol L-1 to ~ 0.0002 mol L-1.The conductivity of sodium deoxycholate decreases with the increase in the volume fraction of ethanol. The critical micelle concentration of sodium deoxycholate increases with the increase in the volume fraction of ethanol. DOI: http://dx.doi.org/10.3126/bibechana.v9i0.7176 BIBECHANA 9 (2013) 63-68

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10

Bhattarai, Ajaya, Sujit Kumar Shah, and Ashok Kumar Yadav. "Effect of Solvent Composition on the Critical Micelle Concentration of Cetylpyridinium Chloride in Ethanol-Water Mixed Solvent Media." Nepal Journal of Science and Technology 13, no. 1 (2013): 89–93. http://dx.doi.org/10.3126/njst.v13i1.7446.

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The accurate measurement of the specific conductivity of cetylpyridinium chloride in pure water and ethanol-water mixed solvent media containing 0.10, 0.20, 0.30 and 0.40 volume fraction of ethanol at room temperature are reported. The concentrations were varied from ~ 0.005 mol l-1 to ~ 0.0002 mol l-1.The conductivity of cetylpyridinium chloride decreases with the increase in the volume fraction of ethanol. The critical micelle concentration of cetylpyridinium chloride increases with the increase in the volume fraction of ethanol. Nepal Journal of Science and Technology Vol. 13, No. 1 (2012)

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