Synthesis of 2-Hydroxy-3-(Methyl­cyclo­hexenyl-Isopropyl)-5-Methylbenzyl­amino­ethylnonyl Imidazolines - The Thermostabilizers to Polypropylene

2018 ◽  
Vol 935 ◽  
pp. 155-159
Author(s):  
Z.Z. Aghamaliyev ◽  
Mehriban V. Naghiyeva ◽  
Ch. K. Rasulov
Keyword(s):  
Aqueous Solution ◽  
Hydrochloric Acid ◽  
Amine Salt ◽  
Chemical Characteristics ◽  
Hydrochloride Salt ◽  
Physico Chemical ◽  
Concentrated Solution

2-hydroxy-3-(methylcyclohexenyl-isopropyl)-5-methylbenzylaminoethylnonylimidazolines were synthesized by the interaction of 2-(methylcyclohexynylisopropyl-4-methylphenols and aminoethylnonylimidazoline. Aminocompounds are purified from cycloalkylphenol by transferring them to hydrochloride salt. Further, aqueous solution of the hydrochloric acid amine salt is treated with a concentrated solution of NH4OH and free aminecompounds are isolated. The resulting amine is separated from water by benzene extraction. After benzene distillation, the residue is undergone to distillation under vacuum. Its physico-chemical characteristics and purity of the products are determined. The obtained products are tested as the thermostabilizers to polypropylene.

Physico-chemical Characteristics of Amino Acids in Aqueous Solution of Amikacin Sulphate

2021 ◽  
Author(s):  
Poonam Chaudhary ◽  
◽  
Suvarcha Chauhan ◽  
Vivek Sharma ◽  
Kuldeep Singh ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Amino Acids ◽  
Chemical Characteristics ◽  
Physico Chemical

Effects on Nafion® 117 Membrane using Different Strong Acids in Various Concentrations

2013 ◽  
Vol 16 (3) ◽  
pp. 151-156 ◽  
Author(s):  
L. Napoli ◽  
M.J. Lavorante ◽  
J. Franco ◽  
A. Sanguinetti ◽  
H. Fasoli
Keyword(s):  
Hydrochloric Acid ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Chemical Properties ◽  
Electrolyte Membrane ◽  
Physico Chemical ◽  
Concentrated Solution ◽  
Membrane Treatment ◽  
Strong Acids ◽  
Acid Nature

The effects of the acid nature and its concentration on the physico chemical properties of the membranes were studied. How these parameters impact the performance of Nafion 117 as a polymer Electrolyte membrane is shown.In particular the effect of this membrane treatment on its properties was studied with the following five strong acids: -Nitric, Sulphuric, Perchloric, Phosphoric or Hydrochloric acid- in six different concentrations: -0.025 M, 0.05 M, 0.25 M, 0.5 M, 0.75 M and 1 M.It was found that the membrane shows a similar behaviour when it is treated with different strong acids, incorporating between 16 to 21 molecules of water depending on the concentration of the acid. The results show that the effect of the different concentrations on the membrane behaviour is remarkable. This leads to the conclusion that the best treatment is to use solutions 0.025 M and 0.05 M (twenty times more diluted than the most concentrated solution tested in the experience) of the strong acid.It was also shown that after the membrane hydration its size increases by 10 percent (average).

Studying dispersed and rheological properties of hydrocarbon-containing acid emulsions and their efficiency in removing asphalt-resin-paraffin deposits

2020 ◽  
pp. 128-139
Author(s):  
M. Yu. Shumakher ◽  
V. V. Konovalov ◽  
A. P. Melnikov
Keyword(s):  
Aqueous Solution ◽  
Hydrochloric Acid ◽  
Rheological Properties ◽  
Reaction Rate ◽  
Experimental Studies ◽  
Efficient Removal ◽  
Reservoir Properties ◽  
Hydrocarbon Solvents ◽  
Formation Zone ◽  
Effect Of The Composition

Currently, the treatment of the bottomhole formation zone with acidic compositions is one of the most common methods to intensify the oil inflow. The use of various modified acid compositions increases the efficiency of acid treatments on the bottomhole formation zone. Acid compositions, including those containing hydrocarbon solvents, which contribute to more efficient removal of organic colmatants, affect the reaction rate of the reagent with the rock and processing equipment, change the reservoir properties, etc.The article presents the results of experimental studies, which are aimed at establishing the effect of the composition of hydrocarbon-containing acidic emulsions consisting of an aqueous solution of hydrochloric acid, toluene and Neonol AF 9-10 on their dispersed and rheological properties, as well as their efficiency in removing paraffin deposits.

Study of Physico-chemical Characteristics and Pharmacological Effects of 1-Ethyl-Salicyldene-bis-Ethylene-Diamine and Its Complex with Mn(II)

2019 ◽  
Vol 70 (7) ◽  
pp. 2534-2537
Author(s):  
Gladiola Tantaru ◽  
Mihai Apostu ◽  
Antonia Poiata ◽  
Mihai Nichifor ◽  
Nela Bibire ◽  
...  
Keyword(s):  
Schiff Base ◽  
Chemical Structure ◽  
Antimicrobial Activities ◽  
Ethylene Diamine ◽  
Chemical Characteristics ◽  
Gram Negative Bacteria ◽  
Pharmacological Effects ◽  
Physico Chemical ◽  
Anti Inflammatory ◽  
Inflammatory Effect

The paper presents the synthesis of a new complex combination of a Bis-Schiff base with Mn(II) ions with great potential for antimicrobial and anti-inflammatory activity. A new complex of the Salen-type ligand, 1-ethyl-salicylidene-bis-ethylene diamine was synthetized using Mn(II) ions. The chemical structure was confirmed through 1H-NMR and IR spectroscopy. The antimicrobial activities of the Bis-Schiff base and its complex were tested in comparison with Ampicillin, Chloramphenicol, Tetracycline, Ofloxacin and Nystatin. Those compounds were found to be active against Gram-positive or Gram-negative bacteria, and had an anti-inflammatory effect comparable to that of Indomethacin.

Progress and Prospects in Translating Nanobiotechnology in Medical Theranostics

2020 ◽  
Vol 16 (5) ◽  
pp. 685-707 ◽  
Author(s):  
Amna Batool ◽  
Farid Menaa ◽  
Bushra Uzair ◽  
Barkat Ali Khan ◽  
Bouzid Menaa
Keyword(s):  
Biological Properties ◽  
Chemical Characteristics ◽  
Intrinsic Properties ◽  
The Past ◽  
Profound Influence ◽  
Functionalized Nanomaterials ◽  
Physico Chemical ◽  
Properties Of Materials ◽  
Targeted Drug ◽  
And Performance

: The pace at which nanotheranostic technology for human disease is evolving has accelerated exponentially over the past five years. Nanotechnology is committed to utilizing the intrinsic properties of materials and structures at submicroscopic-scale measures. Indeed, there is generally a profound influence of reducing physical dimensions of particulates and devices on their physico-chemical characteristics, biological properties, and performance. The exploration of nature’s components to work effectively as nanoscaffolds or nanodevices represents a tremendous and growing interest in medicine for various applications (e.g., biosensing, tunable control and targeted drug release, tissue engineering). Several nanotheranostic approaches (i.e., diagnostic plus therapeutic using nanoscale) conferring unique features are constantly progressing and overcoming all the limitations of conventional medicines including specificity, efficacy, solubility, sensitivity, biodegradability, biocompatibility, stability, interactions at subcellular levels. : This review introduces two major aspects of nanotechnology as an innovative and challenging theranostic strategy or solution: (i) the most intriguing (bare and functionalized) nanomaterials with their respective advantages and drawbacks; (ii) the current and promising multifunctional “smart” nanodevices.

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