SULPHONATED POLYARYLETHERKETONES AND PROCESS FOR THE MANUFACTURE THEREOF

A polyarylethersulphone copolymer which is a hydrophilic sulphonated copolymer derived by controllably sulphonating a copolymer having the repeat unit of formulatogether with the repeat unit B of formulasubstantially all the units A being sulphonated after sulphonation and substantially all the unit...

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1. Verfasser: ROSE, JOHN BREWSTER
Format: Patent
Sprache:eng
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Zusammenfassung:A polyarylethersulphone copolymer which is a hydrophilic sulphonated copolymer derived by controllably sulphonating a copolymer having the repeat unit of formulatogether with the repeat unit B of formulasubstantially all the units A being sulphonated after sulphonation and substantially all the units B remaining non-sulphonated after sulphonation. The sulphonation is effected using 98%w/w sulphuric acid.