Polymeric adsorbents from macroreticular polymer beads

Details Polymeric adsorbents from macroreticular polymer beads Polymeric adsorbents from macroreticular polymer beads

C - Chemistry, Metallurgy

08

J

402/296, 252/31,

C08J 3/24 (2006.01) B01J 7/00 (2006.01) B01J 20/22 (2006.01) B01J 20/26 (2006.01) B01J 39/20 (2006.01) C08F 8/00 (2006.01)

Patent

CA 1130500

Abstract of the Disclosure Polymeric adsorbents exhibiting improved poro- sity and adsorption are produced from lightly cross- linked macroreticular aromatic copolymer beads by post- crosslinking the copolymer beads while in a swollen state, the crosslinks resulting from the post-crosslinking comprising the residue of an external crosslinker selected from a polyfunctional alkylating agent, a polyfunctional acylating agent, and a sulfur halide. An acid catalyst is used for the post-crosslinking, such as a Friedel- Crafts catalyst. The adsorbents may be functionalized to ion exchange resins.

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