Chlorosulfonated polysulfones and derivatives thereof

C - Chemistry – Metallurgy – 08 – G

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C08G 75/23 (2006.01) C08G 65/48 (2006.01)

Patent

CA 1221492

ABSTRACT A polysulfone sulfonyl chloride having recurring units of the formula: Image Sulfonamides quaternized products and other derivatives of the above polysulfone. These derivatives are suitable for the formation of membranes, coatings, ion exchange resins, ion exchange fibers selectively permeable barrier films, and the like. The preparation of these compounds is also disclosed. It includes the chlorination of hydroxysulfonyl sites of sulfonated polysulfones, and optionally further reaching the chlorosulfonyl polysulfone polymer via the chlorosulfonyl polymer.

441526

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