Results 101 to 110 of about 14,880 (275)

Effect of a phosphonium salt grafted on polymers on cucumber germination and initial growth

open access: yesBrazilian Archives of Biology and Technology, 2011
The aims of this study were the synthesis, characterization and the testing of vinyldiphenylphosphonium salt phytotoxicity. Phytotoxicity of the synthesised salt was tested on Cucumis sativus L.
Adriana Popa   +3 more
doaj   +1 more source

Investigation of phosphorous organic compounds adsorption during corrosion inhibition of copper alloys into simulated seawater

open access: yesApplied Surface Science Advances
This work explores the protective behavior of a cyclic phosphonium salt (PBC) when applied to various copper-based metal surfaces, including Cu, CuZn, CuSn, and CuNi.
Kais Sindi   +6 more
doaj   +1 more source

Synthetic Antibacterial Quaternary Phosphorus Salts Promote Methicillin-Resistant Staphylococcus aureus-Infected Wound Healing

open access: yesInternational Journal of Nanomedicine, 2023
Liang-Wen Shi,1,* Quan-Quan Zhuang,2,* Tai-Qin Wang,1 Xian-Dong Jiang,3 Yue Liu,4 Jing-Wen Deng,1 Huan-Huan Sun,5 Yi Li,4 Hao-Hong Li,4 Ting-Bo Liu,6 Jian-Zhi Liu1 1Department of Otorhinolaryngology, Fujian Medical University Union Hospital ...
Shi LW   +10 more
doaj  

Recent trends in metals extraction [PDF]

open access: yes, 2015
After near 70 years of practical usage, solvent extraction is a perfectly mastered technique of separation, widely used on an industrial scale for the separation of metals mainly from raw materials.
Alguacil, Francisco José   +1 more
core   +2 more sources

The role of onium salts in the oxidation of hydrocarbons by O2 catalysed by cationic phase-transfer reagents [PDF]

open access: yes, 2000
Experimental and theoretical evidence is presented that cationic phase-transfer catalysts promote the homolytic decomposition of hydroperoxide initiators into radicals, this being a fundamental step in the catalysis of the oxidation of hydrocarbons by O ...
Csányi, László J.   +4 more
core   +1 more source

Novel Metal-Free Synthesis of 3-Substituted Isocoumarins and Evaluation of Their Fluorescence Properties for Potential Applications

open access: yesMolecules
A novel metal-free synthesis of 3-substituted isocoumarins through a sequential O-acylation/Wittig reaction has been established. The readily accessible (2-carboxybenzyl)-triphenylphosphonium bromide and diverse chlorides produced various 1H-isochromen-1-
Mei Sun   +9 more
doaj   +1 more source

Polystyrene Nanocomposites Based on Quinolinium and Pyridinium Surfactants [PDF]

open access: yes, 2006
In this paper pyridine and quinoline-containing salts were employed to modify montmorillonite. TGA analysis shows that the quinolinium modified clay has a higher thermal stability than the pyridinium modified clay.
Chigwada, Grace   +2 more
core   +1 more source

Flame Retardancy of Polystyrene Nanocomposites Based on an Oligomeric Organically-Modified Clay Containing Phosphate [PDF]

open access: yes, 2003
Novel modified clays, which may enable the formation of flame retarded polystyrene nanocomposites by melt or solution blending, have been prepared using an ammonium salt which contains an oligomeric material consisting of vinylbenzyl chloride, styrene ...
Wilkie, Charles A., Zheng, Xiaoxia
core   +2 more sources

Mechanistic studies on DNA damage by minor groove binding copper–phenanthroline conjugates [PDF]

open access: yes, 2005
Copper–phenanthroline complexes oxidatively damage and cleave nucleic acids. Copper bis-phenanthroline and copper complexes of mono- and bis-phenanthroline conjugates are used as research tools for studying nucleic acid structure and binding interactions.
Bales, Brian C.   +5 more
core   +2 more sources

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