A benign and efficient promoted synthesis of 1,5-benzodiazepinederivatives via a simple and atom-economical reaction between 1,2-phenylenediamines as well as ketones by the usage of catalytic amount of SnO2 nanoparticlesat room temperature in ethanol as a solvent is described. This approach results for the synthesis of various 1,5-benzodiazepines in excellent yields (93-98%). The advantages of this […]
Diabetes mellitus is a common disease that currently affects more than 3 million people in Iran. Many years ago, medicinal herbs have been used to treat many diseases. In this study, the evaluation and comparison of blood glucose lowering agents from different parts of mango (leaf, peel, and fruit) was studied. In this experimental study, […]
In this research, a novel type of pervaporation membrane was developed by (polydimethylsiloxane (PDMS)/Graphene oxide (GO))/poly valerolactone (PVL) composite membrane. This prepared membrane was used to separate ethylene dichloride from water. The electrospinning method was used to nanofiber PVL preparation as a support layer for the composite membrane.To increase the selectivity of the optimized PVL […]
With rapid technological developments in the field of polymers, it became a necessity for the graduates in chemical engineering discipline to have a comprehensive understanding about the synthesis, properties, processing and product design fundamentals of various polymeric materials to excel in their imminent career fields. Many universities offer courses related to polymers as elective courses […]
Schiff bases are multi-purpose ligands that are synthesized by condensing primary amines with carbonyl groups in aldehydes or ketones. In this work, my ligand, [2-methyl-4-((E)-((2-(((Z)-(3-hydroxy-5-(hydroxymethyl)-2-methylpyridine-4-yl)methylene)amino)pyridine-3-yl)imino)methyl)-5-(hydroxymethyl)pyridine-3-ol] (H2L) , was preparated from the reaction of 2,3-diaminopyridin and pyridoxal. Ni and Cu Complexes based on this ligand were also synthesized and the construction of the ligand and the […]
In response to the problems of high energy consumption, high maintenance costs, and significant environmental impact in traditional sludge treatment schemes, strict control of conditions is required. This study investigates the effect of different raw materials, water temperatures, additives, and physicochemical pretreatments on the hydrothermal carbonization and tempering of sludge through hydrothermal reactions. The experimental […]
Due to the lack of phenol hydroxylation activity of common catalysts, the conversion rate is low, which cannot meet the application requirements. The effect of magnesium ferrite on the high selective phenol hydroxylation catalyst is proposed. Based on the analysis of the synthesis route of phenol, the related mechanism and influencing factors are obtained according […]
Asphalt pavement will inevitably face the problems of thermal aging and ultraviolet aging, so in order to improve the aging performance of asphalt and improve its service life, the modified asphalt based on nano organic monundedillonite and silica is proposed. Compared with the matrix asphalt, the penetration, ductility, softening temperature, and viscosity of modified asphalt […]
