SUBSTANCE: method of preparing 4,4′- dichlorodiphenyl sulfone (sulfone) comprises reacting chlorobenzene with chlorosulfonic acid and isolating sulfone from reaction mixture which contains, in addition to sulfone, n-chlorobenzenesulfonic acid. Chlorobenzene is added to reaction mixture resulting from ...
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(2-hydroxyethyl)amino)-1-nitrobenzene, 2,4-dinitro-1-hydroxynaphthalene,1,4-di[(2,3-dihydroxypropyl)amino]-9,10-anthraquinone, 1,4-di[(2-hydroxyethyl)amino]-9,10-anthraquinone (CI61545, Disperse Blue 23), 1-[(2-hydroxyethyl)amino]-4-methylamino-9,10-anthraquinone (CI61505, Disperse ...
A.E.McGrathJ.ingentaconnectPolymer LondonLi Y.X,VanHouten R.A.,Brink A.E. et al.Purity characterization of 3,3‘-disulfonated-4,4‘-dichlorodiphenyl sulfone (SDCDPS) monomer by UV-vis spectroscopy. Polymer . 2008Purity characterization of 3,3‘-disulfonated-4,4‘-dichlorodiphenyl sulfon...