Sulfone


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sulfone

[′səl‚fōn]
(organic chemistry)
R2SO2(or RSOOR) A compound formed by the oxidation of sulfides, for example, ethyl sulfone, C4H10SO2, from ethyl sulfide, C4H10S; the use of sulfones, particularly 4,4′-sulfonyldianiline (dapsone) in the treatment of leprosy leads to apparent improvement; relapses associated with sulfone-resistant strains have been encountered.

Sulfone

 

any of several organosulfur compounds containing the

group bonded to two organic radicals. Sulfones are colorless and very stable crystalline substances; for example, diphenylsulfone, (C6H5)2SO2, melts at 128°C and boils at 379°C. Both aliphatic and aromatic sulfones are obtained by oxidation of organic sulfides; aromatic sulfones are also obtained by means of the Friedel-Crafts reaction.

Some substituted sulfones are used in medicine—for example, diaphenylsulfone (4,4’-diaminodiphenylsulfone) is used in the treatment of leprosy. Polyarylenesulfones are used for the production of packages for foodstuffs and electrotechnical parts.

References in periodicals archive ?
Monomer Trade name Chemical formulation DGEBA DER 331 [formula not reproducible] BE F2200 [formula not reproducible] Triethylenetetramine TETA [formula not reproducible] Polyetheramine JEFFAMINE T-403 [formula not reproducible] (PEA4) Diaminodiphenyl DDS [formula not reproducible] sulfone Monomer Mw F DGEBA 374 2 BE 696 2 Triethylenetetramine 146 6 Polyetheramine 226 6 Diaminodiphenyl 248 4 sulfone F, functionality; Mw, molar weight (g/mol).
Fu et al., "Study on phenolphthalein poly(ether sulfone)-modified cyanate ester resin and epoxy resin blends," Polymer Engineering and Science, vol.
"Solvay's expansion firms up our leading position in sulfone polymers which benefit from booming demand in fast-growing industries such as water purification and health care," says Augusto Di Donfrancesco, president of Solvays special polymers global business unit.
Plasma concentrations of sulindac and its metabolites, sulindac sulfide and sulindac sulfone, were quantified by ultraperformance liquid chromatography tandem Photodiode Array (UPLC-PDA) [19].
The combination of features such as mechanically tough and rigid, transparent, resistance against hydrolysis and against acidic attacks and melt processing at temperatures of up to 400[degrees]C, coupled with ease of fabrication, has enabled sulfone polymers to be used in a wide and increasingly diversified range of applications.
On the other hand, synthesis of poly(arylene ether sulfone)s is easier and cost is lower.
The structure proposed in this research shows effective catalytic activity for the environmental compatible oxidation of various sulfides to both types of sulfoxide and sulfone at room temperature.
Liu, Development and characterization of sulfonated poly(ether sulfone) for proton exchange membrane materials, Solid State Ionics: 178(5), 339-345 (2007).
Arvind OG says it has installed custom-built machines specifically designed to achieve Japanese quality standards and capable of handling various fibers such as M-aramid, homopolymer acrylic, poly-phenelyene sulfone (PPS), polyimide polypropylene and polyester.
Arvind OG has installed custom-built machines specifically designed to achieve Japanese quality standards and capable of handling various fibers such as M-Aramid, Homopolymer Acrylic, Poly-phenelyene Sulfone (PPS), Polyimide Polypropylene and Polyester.
Allowable liver and muscle concentrations of fenbendazole sulfone in turkeys are 6 and 2 ppm, respectively, with a 6-hour feed withdrawal.
Poly(aryl ether ketone)s (PAEKs) and poly(aryl ether sulfone)s (PAESs) are two important commercial poly(aryl ether)s.