Sulfonamide bonded hydrophilic coatings

Details Sulfonamide bonded hydrophilic coatings Sulfonamide bonded hydrophilic coatings

B - Operations, Transporting

01

J

B01J 41/14 (2006.01) B01J 20/32 (2006.01) G01N 30/48 (1990.01)

Patent

CA 2099574

2099574 9211933 PCTABS00014 A method of derivatizing a chromatography matrix having a hydrophobic surface. The technique involves reacting the hydrophobic surface with a halosulfonating agent to produce a significant amount of halosulfone groups covalently bonded onto the surface. Sulfonamide bonds are then formed between these halosulfone groups and a group of functions on a polyaminated polymer to produce a pellicular anion exchange layer covalently bonded to the surface. The resulting layer is stable in the absence of cross-links between the molecules of the polyaminated polymer.

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