Results 71 to 80 of about 25,772 (306)

Benzimidazolium Surfactants for Modification of Clays for Use with Styrenic Polymers [PDF]

open access: yes, 2007
Nanocomposites of polystyrene (PS), acrylonitrile-butadiene-styrene copolymer (ABS) and high impact polystyrene (HIPS) were prepared with two new homologous benzimidazolium surfactants used as organic modifications for the clays.
Costache, Marius C.   +4 more
core   +1 more source

Ion‐Pair Interactions in Polyphenylene‐Based Quaternized Membranes Designed for Phosphoric Acid‐Doped Proton Exchange Membranes for High‐Temperature Fuel Cells

open access: yesAdvanced Science, EarlyView.
Quaternized polyphenylene‐based membranes with tailored hydrophobic groups (C7‐QAF and BAF‐QAF) exhibit high phosphoric acid uptake, acid retention, proton conductivity, and stability. Their well‐developed microphase‐separated structures and robust ion‐pair interactions enable superior fuel cell performance at 140 and 160 °C without humidification ...
Lin Guo   +8 more
wiley   +1 more source

Benzimidazole and its derivatives: Recent Advances (2020–2022)

open access: yesResults in Chemistry, 2023
Benzimidazoles are fused heterocyclic ring systems containing two nitrogen atoms. They have vital therapeutic significance in drug discovery. Many clinically approved drugs have been developed from benzimidazole, and these include liarozole and ...
Oluwakemi Ebenezer   +3 more
doaj  

Design, Synthesis and Anti-HIV Integrase Evaluation of 4-Oxo-4H-quinolizine-3-carboxylic Acid Derivatives [PDF]

open access: yes, 2009
4-Oxo-4H-quinolizine-3-carboxylic acid derivatives bearing sulfamido, carboxylamido, benzimidazole and benzothiazole substituents have been designed and synthesized. The structures of these new compounds were confirmed by 1H-NMR, 13C- NMR, IR and ESI (or
Brown   +12 more
core   +2 more sources

Bandgap‐Dependent Doping of Semiconducting Carbon Nanotube Networks by Proton‐Coupled Electron Transfer for Stable Thermoelectrics

open access: yesAdvanced Electronic Materials, EarlyView.
Proton‐coupled electron transfer doping with benzoquinone is applied to p‐dope dense films of semiconducting single‐walled carbon nanotubes. The doping efficiency depends on the pH of the doping solution and the bandgap of the nanotubes. The highest conductivities and power factors are achieved for small‐bandgap nanotubes, remaining stable for over 120
Angus Hawkey   +5 more
wiley   +1 more source

Mebendazole spectrophotometric determination: theorical and experimental study of the interaction with sodium hydroxide [PDF]

open access: yes, 2016
USP, EP, and Argentinian Pharmacopoeia proposed HPLC-UV for quantitative quality control of mebendazole (MBZ) tablets. In this work, a spectrophotometric method is proposed.
Delfino, Mario Raul   +3 more
core  

Deep Blue Fluorescent OLEDs Based on a Solution and Solid‐State Emitter (SSSE): Investigations with 2‐Phenyl‐Naphthoxazole

open access: yesAdvanced Electronic Materials, EarlyView.
The blue fluorescent molecule 2‐phenyl‐naphth[2,3‐d]oxazole (Nzx) exhibits strong emission in both solution and solid states. Such behavior, referred to as solution and solid‐state emission (SSSE), makes Nzx a promising candidate for optoelectronic applications. This study highlights the potential of Nzx for the development of stable and efficient near
Houssein El Housseiny   +5 more
wiley   +1 more source

Complete Reaction Studies in Exobiology - the Chemistry and Photochemistry of Nucleic Acid Constituents and Related Compounds, and Their Detection, Characterization, and Isolation Semiannual Progress Report No. 4 /final/ [PDF]

open access: yes
Fluorescence spectra for purines, guanine, and benzimidazole - photolysis and photochemical reactions of nucleotide derivatives and isolation of their photolytic primary ...
Millich, F.
core   +1 more source

The effect of lipophilicity on the antibacterial activity of some 1-benzylbenzimidazole derivatives [PDF]

open access: yes, 2008
In the present paper, the antibacterial activity of some 1-benzylbenzimidazole derivatives were evaluated against the Gram-negative bacteria Escherichia coli. The minimum inhibitory concentration was determined for all the compounds.
D. D. CVETKOVIC   +2 more
core   +1 more source

Understanding the Interplay Between Thermal Activation, Diffusion, and Phase Segregation of Molecular Dopants Blended with Polymeric Semiconductors

open access: yesAdvanced Electronic Materials, EarlyView.
The use of air stable but thermally labile molecules provides an efficient strategy for the N‐type doping of organic semiconductors with relatively low electron affinities. Design criteria for efficient dopants should also take into account diffusion and phase segregation that cannot be decoupled from thermally activated doping.
Francesca Pallini   +15 more
wiley   +1 more source

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