68573-07-9Relevant academic research and scientific papers
THIAZOLE DERIVATIVES FOR THE TREATMENT OF ANIMAL TRYPANOSOMIASIS
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Page/Page column 81, (2016/10/04)
The present invention relates to a novel class of compounds of general formula (I) wherein R1, R2, R3, R4, R5, R6, R7, X and Y are as defined herein, to their use in human and veterinary medicine, and in the treatment of animal trypanosomiasis in particular, to compositions containing them, to processes for their preparation and to intermediates used in such processes.
Anion conductive aromatic copolymers from dimethylaminomethylated monomers: Synthesis, properties, and applications in alkaline fuel cells
Akiyama, Ryo,Yokota, Naoki,Nishino, Eriko,Asazawa, Koichiro,Miyatake, Kenji
, p. 4480 - 4489 (2016/07/07)
A novel series of anion conductive aromatic copolymers were synthesized from preaminated monomers (2,5-, 3,5-, or 2,4-dichloro-N,N-dimethylbenzylamine), and their properties were investigated for alkaline fuel cell applications. The targeted copolymers (QPE-bl-11a, -11b, and -11c) were synthesized via nickel-mediated Ullmann coupling polymerization, followed by quaternization and ion exchange reactions. Unlike the conventional method involving chloromethylation or bromination, this method provided copolymers with well-defined chemical structure. The hydrophilic components of the copolymers were composed of chemically stable phenylene main chain modified with high-density ammonium groups. Oligo(arylene ether sulfone ketone)s were employed as a hydrophobic block. QPE-bl-11a gave tough and bendable membranes by solution casting. The obtained membrane with the highest ion exchange capacity value (IEC = 2.47 mequiv g-1) showed high hydroxide ion conductivity (130 mS cm-1) in water at 80 °C. The QPE-bl-11a membrane showed reasonable alkaline stability in 1 M KOH aqueous solution for 1000 h at 60 °C. A platinum-free fuel cell was successfully operated with hydrazine as a fuel, the QPE-bl-11a as a membrane, and an electrode binder. The maximum power density of 380 mW cm-2 was achieved at a current density of 1020 mA cm-2 with O2.
