Russian Journal of Applied Chemistry最新文献

ZnO and SiO2 Recovery from Upgraded of Pyrolytic Carbon Black by Improved Solid-Liquid Extraction Method

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2025-04-01 DOI: 10.1134/S1070427224605060

Ufuk Sancar Vural, Abdullah Yinanc, H. Cahit Sevindir

引用次数: 0

Structure, Phase Composition and Properties of Al3Er Master Alloys Obtained by “Hydride Technology” and Mechanical Treatment

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2025-04-01 DOI: 10.1134/S1070427224110028

S. D. Sokolov, N. I. Karakchieva, Yu. A. Abzaev, N. I. Kakhidze, I. A. Zhukov, V. I. Sachkov, A. B. Vorozhtsov

{"title":"Structure, Phase Composition and Properties of Al3Er Master Alloys Obtained by “Hydride Technology” and Mechanical Treatment","authors":"S. D. Sokolov, N. I. Karakchieva, Yu. A. Abzaev, N. I. Kakhidze, I. A. Zhukov, V. I. Sachkov, A. B. Vorozhtsov","doi":"10.1134/S1070427224110028","DOIUrl":"10.1134/S1070427224110028","url":null,"abstract":"The incorporation of rare-earth metals beneficially influences the microstructure, mechanical properties, and overall performance of base alloys by forming modifying and strengthening intermetallic phases. This investigation focuses on the production of Al3Er master alloy using “hydride technology,” involving the preliminary hydrogenation of erbium and mechanical processing of starting components. The study demonstrates the impact of pre-mechanical treatment of an Al–Er powder mixture on the structure and properties of Al3Er master alloy. The master alloy obtained with pre-mechanical processing exhibits a homogeneous structure comprising an aluminium matrix with evenly dispersed Al3Er inclusions. Thin interlayers of dispersed eutectics, enriched with approximately 20–25 wt % erbium, are observed along the boundaries of the Al solid solution. Structural analysis of Al3Er master alloy using the Rietveld method revealed two metallic phases: aluminium solid solutions (~95.14%) and the intermetallic compound Al3Er (~4.86%). With machining, the average Vickers microhardness value of regions predominantly composed of Al3Er was (92.4 ± 8.0) HV, reaching a maximum of (105 ± 8.0) HV. In contrast, the average microhardness value of the master alloy obtained without machining in these areas was (68.4 ± 8.0) HV.","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"97 11","pages":"819 - 826"},"PeriodicalIF":0.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Innovative Passivation Technique for Enhanced Corrosion Resistance of Zinc Coatings

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2025-04-01 DOI: 10.1134/S1070427224605734

İbrahim Usta, Muhammed Furkan Çiftci, Emine Gür, Hülyanur Kahveci

引用次数: 0

Enhancement of Specific Capacitance Using a Mixture of Sweet Potato Ash and Zinc Oxide Nanoparticles on Reduced Graphene Oxide Sheets

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2025-04-01 DOI: 10.1134/S1070427224604510

S. Rattanaveeranon, K. Jiamwattanapong, R. Suntako

引用次数: 0

A Review on Potential Applications of PLA Nanofibers

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2025-04-01 DOI: 10.1134/S1070427224110016

Sima Habibi, Atieh Ghajarieh, Shervin Ahmadi

{"title":"A Review on Potential Applications of PLA Nanofibers","authors":"Sima Habibi, Atieh Ghajarieh, Shervin Ahmadi","doi":"10.1134/S1070427224110016","DOIUrl":"10.1134/S1070427224110016","url":null,"abstract":"In recent years, bio-based polymeric materials have attracted increased attention due to their renewability and environmental friendliness. Polylactic acid (PLA), a biodegradable bio polyester, has emerged as the dominant polymer in industrial applications and is often referred to as the “polymer of the 21st century.” It possesses biocompatibility, biodegradability, and a biobased nature, making it unique among polymers synthesized on a large scale. PLA, a non-toxic linear aliphatic thermoplastic polyester, exhibits favorable thermomechanical properties and finds widespread use in various fields, including biomedical applications, the food industry, air and water filtration, and sensors. Nanofibers are most attractive materials in the scientific world due to their enormous applications in various fields. Electrospun membranes have been showed high porosity and high specific surface, as well as tunable mechanical properties and topological features. This review focuses on recent developments, current findings, and emerging trends in the field of PLA-based nanofibers, highlighting advancements in PLA properties and providing detailed insights into the preparation and diverse applications of nanofibers based on PLA.","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"97 11","pages":"803 - 818"},"PeriodicalIF":0.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Erratum to: Diglycidyl Ether of Bis-phenol-A, Epoxy Resin and Triphenylamine Linked Azomethine-Based Polymer Networks as Thermally Resistant, Blue Light Emissive Smart Materials

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2025-03-18 DOI: 10.1134/S10704272240100033

Hufsa Rani, Naila Khalid, Ahtaram Bibi, Rahatullah Khan

引用次数: 0

Erratum to: Synthesis and Electrochemical, Thermodynamic, and Surface and Quantum Chemistry Studies to Evaluate Corrosion Inhibition Effect of Polyepichlorohydrin Modified with 3-Nitro-1,2,4-triazole-5-one Sulfur Group for Mild Steel in Hydrochloric Acid Solution

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2025-03-18 DOI: 10.1134/S10704272240100069

Sh. Jahangiri, M. A. Doostmohammadi

引用次数: 0

Erratum to: Addition Polymers Based on Bifunctional Norbornenes Containing Imide Fragments

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2025-03-18 DOI: 10.1134/S10704272240100057

A. P. Khrychikova, E. V. Bermesheva, K. S. Sadovnikov, V. G. Bekeshev, M. V. Bermeshev

引用次数: 0

Transvinylation of 4- and 5-Nitropyrazoles with Vinyl Acetate in the Presence of Mercury Acetate Immobilized on Poly(vinylazole) Substrates

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2025-03-04 DOI: 10.1134/S107042722410001X

L. A. Bichakhchyan, A. H. Sukoyan, T. G. Movsisyan, H. S. Attaryan

{"title":"Transvinylation of 4- and 5-Nitropyrazoles with Vinyl Acetate in the Presence of Mercury Acetate Immobilized on Poly(vinylazole) Substrates","authors":"L. A. Bichakhchyan, A. H. Sukoyan, T. G. Movsisyan, H. S. Attaryan","doi":"10.1134/S107042722410001X","DOIUrl":"10.1134/S107042722410001X","url":null,"abstract":"In this article, we aim to use polyvinylazoles as a support for mercury acetate, which can be used as a heterogeneous catalyst in transvinylation reactions for the synthesis of vinyl derivatives of azoles. The transition from a homogeneous to a heterogeneous system in transvinylation reactions allows for the easy separation of the catalyst from the reaction mixture and its reuse, which thereby reducing mercury salt pollution in wastewater. Cross-linked polyvinylazoles, obtained through radical copolymerization of vinyltriazole and vinylimidazole with divinylbenzene, were used as a support. Subsequently, these cross-linked polymers were heated in a mixture of benzene and acetic acid with mercury oxide. The amount of mercury acetate in the obtained complex is 60–65%. The structure of the obtained complexes was confirmed by IR spectroscopy, and they were tested as heterogeneous catalysts in transvinylation reactions in the azole-vinyl acetate system. It has been shown that the obtained heterogeneous catalysts can be successfully used (approximately six times) in selected transvinylation reactions. The structure of the obtained vinylazoles was confirmed by IR and NMR 1H and 13C spectroscopic methods.","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"97 10","pages":"772 - 777"},"PeriodicalIF":0.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New Schiff Base Clubbed Benzothiazole Derivatives: Design, Synthesis, Biological Evaluation, Molecular Docking and Pharmacokinetic Studies as Antibacterial and Antifungal Agents

IF 0.6 4区化学

Russian Journal of Applied Chemistry Pub Date : 2025-03-04 DOI: 10.1134/S1070427224603188

Rahul Tailor, Jigisha Modi, Savan Patel, Rucha Wani, Merwyn Dcosta, Arvind Singh

{"title":"New Schiff Base Clubbed Benzothiazole Derivatives: Design, Synthesis, Biological Evaluation, Molecular Docking and Pharmacokinetic Studies as Antibacterial and Antifungal Agents","authors":"Rahul Tailor, Jigisha Modi, Savan Patel, Rucha Wani, Merwyn Dcosta, Arvind Singh","doi":"10.1134/S1070427224603188","DOIUrl":"10.1134/S1070427224603188","url":null,"abstract":"A series of N,N'-(methylenebis(4-methyl-7-nitrobenzo[d]thiazole-6,2-diyl))bis(1-arylmeth- animine) derivatives 3a–3o were synthesized by the reaction of 6,6'-methylene bis(2-amino-4-methyl-7-nitrobenzo[d]thiazole) with different aromatic aldehyde. All the synthesized compounds were characterized by spectroscopic analysis such as FTIR, 1H NMR, 13C NMR, mass spectra and elemental analysis. The antibacterial activity of these compounds was first studied in vitro by the disk diffusion assay against gram positive and gram negative bacteria. The minimum inhibition concentration (MIC) was then determined with the references of standard drug Ampicillin and Chloramphenicol. The antifungal activity was examined against Candida albicans, Aspergillus clavatus, and Aspergillus niger by the serial plate dilution method using Nystatin and Griseofulv in as standard. All fifteen derivatives were docked against the two proteins, namely carbonic anhydrase 2 (PDB ID: 7SEV) and lanosterol 14 alpha demethylase ((PDB ID: 5V5Z).The compound 3m has shown the best binding score against carbonic anhydrase 2 (PDB ID: 7SEV) (–9.785 kcal/mol) and compound 3o has shown the best score for fungal lanosterol 14 alpha demethylase (–12.538 kcal/mol). The physicochemical properties of potent derivatives were also reported.","PeriodicalId":757,"journal":{"name":"Russian Journal of Applied Chemistry","volume":"97 10","pages":"790 - 799"},"PeriodicalIF":0.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0