Results 41 to 50 of about 10,564 (229)
Optimisation of operating conditions in batch for more sustainable continuous process transposition [PDF]
, 2008 Implementation of exothermic and fast reactions requires a perfect temperature control to avoid thermal runaway and in most cases to limit by-products production.
Elgue, Sébastien +4 more
core
Adsorption‐Engineered Hydrocarbon Ionomers for Durable Proton‐Exchange Membrane Fuel Cells
Advanced Materials, EarlyView.Hydrocarbon ionomers suffer from oxidation‐driven interfacial degradation in PEM fuel cell cathodes, leading to catalyst instability. Here, adsorption‐engineered poly(fluorene) ionomers decouple interfacial anchoring from oxidative degradation, enabling strong catalyst–ionomer interactions while resisting electrochemical oxidation.
Heemin Park +14 more
wiley +1 more source
Sulfonation of Clean and Contaminated Polystyrene (Styrofoam)
, 2021 This study investigates the efficiency of the direct method of sulfonation or the addition of sulfuric acid to clean and contaminated polystyrene or Styrofoam and the comparison of the ion exchange capacity of clean and contaminated polystyrene.The ...
Mañalac, S. +2 more
core
Foods, 2022 The present work proposes the use of an agro-industrial residue from the sunflower crop as a feedstock to produce a low-cost adsorbent with a chemically modified surface bearing sulfonic groups.
William Cardoso Lima +2 more
doaj +1 more source
Controlled sulfonation of poly(N-vinylcarbazole)
, 2000 Poly(N-vinylcarbazole) (PVK) was sulfonated with acetyl sulfate. SIMS and XPS measurements of the sulfonated PVK show that the sulfonation occurs on the carbazole moiety and that the degree of sulfonation (DS) increases linearly with the ratio of the ...
Wong, Philip C.L. +5 more
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
The Sulfonation of Safrole with Trimethylsilylchlorosulfonate as Sulfonating Agent
ChemInform, 2004 AbstractFor Abstract see ChemInform Abstract in Full Text.
Philippe Petit +2 more
openaire +1 more source
Carbon Energy, EarlyView.The present review discusses the advancement in the catalytic synthesis of 5‐alkoxymethylfurfural (AMF) and levulinate esters (LEs) from the aspects of catalytic systems, reaction mechanisms, product isolation, and techno‐economic analysis, supplying valuable insights toward future sustainable and efficient manufacture of AMF and LEs. ABSTRACT The huge
Jun Zhang +6 more
wiley +1 more source