Covalently reactive particles incorporated in a continous porous

Details Covalently reactive particles incorporated in a continous porous Covalently reactive particles incorporated in a continous porous

1991-10-11

1999-11-30

Dees, Jose' G.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including sheet or component perpendicular to plane of web...

428163, 428216, 428217, 428219, 428223, 4282971, 264 22, 264175, B32B 700, D04H 116

Patent

active

059939354

ABSTRACT:
A composite article is provided having covalently reactive particles incorporated in a continuous, porous matrix. The reactive particles have surfaces of covalently reactive functional groups capable of directly forming covalent chemical bonds with ligands without need for an intermediate activation step. An adduct composite article is also provided comprising a continuous, porous matrix and derivatized particles dispersed therein. The derivatized particles comprise a direct, covalent reaction product of ligand with the covalently reactive particles. Methods of making and using the composite articles and adduct composite articles are also provided. Preferred covalently reactive functional groups are azlactone-functional groups of the formula: ##STR1## wherein: R.sup.1 and R.sup.2 independently can be an alkyl group having 1 to 14 carbon atoms, a cycloalkyl group having 3 to 14 carbon atoms, an aryl group having 5 to 12 ring atoms, an arenyl group having 6 to 26 carbon and 0 to 3 S, N, and nonperoxidic O heteroatoms, or R.sup.1 and R.sup.2 taken together with the carbon to which they are joined can form a carbocyclic ring containing 4 to 12 ring atoms, and

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