Results 71 to 80 of about 26,885 (272)
Molecules, 2015 A series of 5H-thiazolo[3,2-a]pyrimidin-5-ones were synthesized by the cyclization reactions of S-alkylated derivatives in concentrated H2SO4. Upon treatment of S-alkylated derivatives at different temperatures, intramolecular cyclization to 7 ...
Dong Cai +6 more
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Frontiers in Pharmacology, 2022 Daidzein (D1) has been proved to be of great benefit to human health. More and more attention was paid to the metabolic process of D1. Most studies focused on the metabolites of D1 and analogs were determined through the excretion of animals and humans ...
Yanxiao Jiao +8 more
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Phosphorus-containing sulfonated polyimides for proton exchange membranes [PDF]
, 2008 Synthesis and characterization of the novel sulfonated BAPPO monomer and its use in the synthesis of a new phosphine oxide-based sulfonated polyimide are described. BTDA, 6FDA, and DDS were used as monomers in the polyimide synthesis.
Cornet +23 more
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The Canadian Journal of Chemical Engineering, EarlyView.Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal +3 more
wiley +1 more source
Impact of sulfonated hydrothermal carbon texture and surface chemistry on its catalytic performance in esterification reaction [PDF]
, 2014 A carbon material consisting of interconnected spheres of around 350 nm diameter has been prepared by hydrothermal synthesis at 453 K. Subsequently, the hydrothermal carbon (HTC) has been treated in N2 at different temperatures, 573, 673, 773, 973 K ...
García-Bordejé, José Enrique
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A sulfur fixation strategy via magnesium oxide is proposed to address sulfur dissolution in hard carbon anodes for sodium‐ion batteries. This method focuses on modifying the morphological structure of the hard carbon material, leading to significantly improved electrochemical performance.
Zebin Song +5 more
wiley +1 more source
Characterization of a Sulfonated Polycarbonate Resistive Humidity Sensor
Sensors, 2013 In this work; resistive moisture sensors were obtained by dip coating sulfonated polycarbonate (SPC) onto silver interdigitated electrodes. Commercial polycarbonate was sulfonated with acetyl sulphate at two different sulfonation degrees corresponding to
Claudio L. Donnici +4 more
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Porous Titanium surfaces to control bacteria growth: mechanical properties and sulfonated polyetheretherketone coating as antibiofounling approaches [PDF]
, 2019 Here, titanium porous substrates were fabricated by a space holder technique. The relationship between microstructural characteristics (pore equivalent diameter, mean free-path between pores, roughness and contact surface), mechanical properties (Young’s
Beltrán, Ana M. +9 more
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A scalable dual‐functional strategy yields simultaneously sulfonated and nanosized cellulose for proton exchange membranes with continuous hydrogen‐bond networks. These sustainable membranes exhibit low‐humidity proton conductivity twofold higher than Nafion 212, providing a robust solution for next‐generation fuel cells.
Nan Li +6 more
wiley +1 more source
Materials Research, 2011 In order to study the influence of different sulfonation routes on its thermal and structural properties sulfonated polyaniline (SPAni) was prepared. FT-IR revealed that the formation of PAni salt or ring sulfonation depends on the route.
Luis Claudio Mendes +3 more
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