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Sulfonic acid catalysts derived from lignosulfonates
New approaches to the preparation of sulfonic acid catalysts derived from wood waste (lignosulfonates) are considered. The data on the features of...
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Preparation and properties of super water-retaining agent with sulfonic acid and carboxylic acid groups assisted by ultrasounds
Superabsorbent hydrogels demonstrate positive significance as water-retaining materials in agriculture and gardens. The super water-retaining...
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Phospho Sulfonic Acid as a Solid Acid Catalyst for Esterification of Long-Chain Fatty Acids
AbstractPhospho sulfonic acid (PSA) is a highly effective and environmentally benign catalyst for the production of biodiesel through the...
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Sulfonic acid functionalized monolithic column for high selectivity capillary electrochromatography separation
A new nano-scale spherical vinyl-functionalized covalent organic polymer (TAPT-DVA-COP) with uniform sizes around 300 nm was initially constructed...
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Structure and Properties of Composite Perfluorinated Sulfonic Acid Membranes Modified with Cross-Linked Poly(vinyl alcohol)
AbstractThe influence of the type of crosslinking agent for poly(vinyl alcohol) (PVA) (glutaraldehyde or epichlorohydrin) on the structure,...
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Theoretically and Experimentally Exploring the Inhibition Effect of Imidazole Sulfonic Acid Derivatives with Multiple Adsorption Sites in 1.0 mol/L HCl
Corrosion inhibitors have played a huge role in daily life and industrial production. Imidazole and sulfonic acid groups have high corrosion...
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Novel Sulfonic Acid Functionalized Silica Supported Isonicotinic Acid Catalyst for Conversion of 2-Methylfuran to Diesel Fuel Precursors
Polyfuranic compounds produced after carbon up-gradation of 2-methylfuran by acid catalyzed C–C bond forming reactions when undergo...
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Imidazolium Sulfonic Acid Chloride Ionic Liquid Functionalized NiS-Graphitic Carbon Nitride as a Solid Acid–Base Bifunctional Catalyst for Knoevenagel Condensation Reactions
The development of rational acid–base bifunctional heterogeneous catalysts for organic transformation reactions is a challenging procedure. An...
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Acid Regulation of Defective Sulfonic-Acid-Functionalized UiO-66 in the Esterification of Cyclohexene with Formic Acid
The esterification of cyclohexene with formic acid is the first step in synthesizing cyclohexanol via the indirect hydration of cyclohexene. In this...
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Synthesis of ethyl levulinate from furfuryl alcohol using waste yeast/sulfonic acid heterogeneous catalyst system
In this study, a functionalized, heterogeneous, and insoluble acid catalyst of yeast-sulfonic acid was prepared by simple steps using spent yeast and...
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Determination of gentamicin by using square wave anodic strip** voltammetry with poly (β-cyclodextrin-p-toluene sulfonic acid) modified glassy carbon electrode
In this study, an effective electrochemical method based on modified glassy carbon electrode was developed for the determination of gentamicin....
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Study on Antifouling and Blood Compatibility Properties of Carboxyl and Sulfonic Acid Groups Modified Polyvinylidene Fluoride Membrane
In this study, a highly efficient, convenient, and universal protocol of in situ cross-linking copolymerization of 2-hydroxyethyl methacrylate and...
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Sulfonic acid-functionalized mesoporous silica catalyst with different morphology for biodiesel production
Sulfonic acid functionalized mesoporous silica based solid acid catalysts with different morphology were designed and fabricated. The synthesized...
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Synthesis of 2-hexyl-5-ethylfuran-3-sulfonic acid (HEFS) – natural antithrombosis agent from Eisenia earthworms
A total synthesis of 2-hexyl-5-ethylfuran-3-sulfonic acid (HEFS) is reported. HEFS is an important natural product isolated as a major metabolite...
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Investigation of polyelectrolyte behavior of poly(allylamine hydrochloride), poly(vinyl sulfonic acid), and copolymers in different conditions
Polyelectrolytes are used in different technology systems, such as reducing environmental pollution, producing lithium batteries, achieving better...
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Synthesis and characterization of poly(vinyl sulfonic acid) in different pH values
Vinyl sulfonic acid (VSA) monomer at various pH values was polymerized by using a special radical initiator 2,2′-azobis(2-methylpropanediamine)...
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Highly efficient and diversity-oriented solvent-free synthesis of biologically active fused heterocycles using glycerol-based sulfonic acid
The present article involves preparation of some novel fused quinazoline analogs by employing aromatic aldehydes, 1,3-cyclic diketones...
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Nano-redispersible metal-oxide–ionomer composite nanopowders prepared using perfluorinated sulfonic acid ionomers in anion-exchange membrane and their radical scavenging performance
New strategies for overcoming the chemical degradation of anion-exchange membranes (AEM) containing perfluoroquaternary ammonium (PFQA) ionomer using...
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Introducing a new magnetic nanocomposite based on the chitosan modified by sulfonic acid-containing moieties for synthesis of 1,4-dihydropyridines and polyhydroquinolines
Due to environmental concerns, the development of bio-inspired nanocatalysts is growing increasingly. Hence, in this study an acidic magnetic...
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Sulfonic acid decorated graphene oxide (GO-SO3H): a efficient heterogeneous catalyst for synthesis of tert-butyl/ethylacetate and pyrazole disubstituted tetrazole derivatives
A simple and straightforward synthetic strategy has been established toward furnishing of promising bis-heterocyclic pyrazole containing substituted...
