Results 11 to 20 of about 5,893 (200)

Solvatochromism of isatin based Schiff bases: An LSER and LFER study [PDF]

Journal of the Serbian Chemical Society, 2016
The derivatives of isatin have already been reported to show a variety of biological activities. However, there has been no report on solvatochromic effect of isatin derivatives so far, and that could be of interest to study and relate to their ...
Brkić Dominik R., Božić Aleksandra R., Nikolić Vesna D., Marinković Aleksandar D., Elshaflu Hana, Nikolić Jasmina B., Drmanić Saša Ž.   +6 more
doaj   +4 more sources

Quantum Chemical (QC) Calculations and Linear Solvation Energy Relationships (LSER): Hydrogen-Bonding Calculations with New QC-LSER Molecular Descriptors

Liquids
A new method, based on quantum chemical calculations, is proposed for the thermodynamically consistent reformulation of QSPR-type Linear Free-Energy Relationship (LFER) models.
Costas Panayiotou
doaj   +2 more sources

Effects of Solvent and Monomer on the Kinetics of Radical Generation in Atom Transfer Radical Polymerization

ChemElectroChem
Unlike classical radical polymerization, the kinetics of atom transfer radical polymerization show significant solvent dependence, possibly arising from solvent effects on the activation step.
Dr. Marco Fantin, Enrico Tognella, Andrea Antonello, Dr. Francesca Lorandi, Elia Calore, Angelika Macior, Prof. Christian Durante, Prof. Abdirisak A. Isse   +7 more
doaj   +2 more sources

Local-Source Enhanced Residual Network for Steganalysis of Digital Images

IEEE Access, 2020
Steganalysis refers to the study of identifying hidden messages in images inserted by steganography. Although detection performance is greatly improved when adopting convolutional neural networks (CNNs), they require sophisticated tricks, such as ...
Wonhyuk Ahn, Haneol Jang, Seung-Hun Nam, In-Jae Yu, Heung-Kyu Lee   +4 more
doaj   +1 more source

Budesonide Solubility in 2-Propanol+ Water Mixtures at T = (293.2 to 313.2) K: Experimental Measurement, Thermodynamic Analysis and Mathematical Modeling [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2023
A shake-flask method was used to investigate the solubility and thermodynamic properties of budesonide (BDS) in the temperature scope of 293.2-313.22 K in aqueous mixtures of 2-propanol.
Esmail Mohamadian, Sanaz Zargar Balaye Jame, Fazlollah Shokri, Mostafa Rostamnezhad, Seyed Hesam Sharifnia   +4 more
doaj   +1 more source

N-(substituted phenyl)-2-chloroacetamides: LSER and LFER study [PDF]

Arabian Journal of Chemistry, 2019
AbstractThe UV absorption spectra of twelve N-(substituted phenyl)-2-chloroacetamides were recorded in eighteen solvents. The effect of specific and non-specific solvent–solute interactions on the absorption maxima shifts was evaluated by using the Kamlet–Taft solvent parameter set, i.e. applying linear solvation energy relationships (LSER) principles.
Matijević, Borko M., Vaštag, Đenđi Đ., Apostolov, Suzana Lj., Milčić, Miloš K., Marinković, Aleksandar D., Petrović, Slobodan D.   +5 more
openaire   +2 more sources

Predicting partitioning from low density polyethylene to blood and adipose tissue by linear solvation energy relationship models

Journal of Biomedical Materials Research Part B: Applied Biomaterials, Volume 111, Issue 12, Page 2044-2054, December 2023., 2023
Abstract The variety of polymers utilized in medical devices demands for testing of extractables and leachables according to ISO 10993‐18:2020 in combination with ISO 10993‐1:2018. The extraction of the materials involves the use of organic solvents as well as aqueous buffers to cover a wide range of polarity and pH‐values, respectively.
Nadin Ulrich, Alexander Böhme, Adrian Benedict Strobel, Thomas Egert   +3 more
wiley   +1 more source

Separation of methacrylic acid from aqueous phase using quaternary amine [PDF]

Journal of Heat and Mass Transfer Research, 2016
The feasibility of extractive reaction of methacrylic acid from aqueous solution using a quaternary amine, tri–octyl methyl ammonium chloride (TOMAC) as an extractant, was studied.
Akanksha Swarnkar, Amit Keshav, Anupam Bala Soni   +2 more
doaj   +1 more source

Columns in analytical‐scale supercritical fluid chromatography: From traditional to unconventional chemistries

Journal of Separation Science, Volume 46, Issue 18, September 2023., 2023
Within this review, we thoroughly explored supercritical fluid chromatography (SFC) columns used across > 3000 papers published from the first study carried out under SFC conditions in 1962 to the end of 2022. We focused on the open tubular capillary, packed capillary, and packed columns, their chemistries, dimensions, and trends in used stationary ...
Kateřina Plachká, Veronika Pilařová, Ondřej Horáček, Taťána Gazárková, Hana Kočová Vlčková, Radim Kučera, Lucie Nováková   +6 more
wiley   +1 more source

Empirical Hydrogen Bonding Donor (HBD) Parameters of Organic Solvents Using Solvatochromic Probes – A Critical Evaluation

ChemPhysChem, Volume 24, Issue 9, May 2, 2023., 2023
The pKa value of the solvatochromic probe in relation to that of the solvent molecule (pKaS) is decisive for whether acid‐base or volumetric effects, with respect to the molar concentration N of the solvent, preferentially determine the empirically measured polarity parameter.
Stefan Spange, Nadine Weiß
wiley   +1 more source