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US 2026/0193834 A1Published application
Graft polymerization of cationic monomers into cellulosic fibers for simultaneous sustainable dyeing and finishing
AssigneeNorth Carolina State University
InventorsAhmed M. EL-SHAFEI, Shahriar SALIM
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Abstract
Disclosed herein are methods for graft polymerizing cationic alkenyl monomers, or polymers made therefrom, into undyed or dyed cellulosic materials. Further provided are methods for dyeing such cationized cellulosic materials, and to dyed or undyed cationized cellulosic materials prepared by the disclosed methods.
Claims23
A method of cationizing a cellulosic fiber or fabric by graft polymerization, the cellulosic fiber or fabric comprising polysaccharide chains comprising a plurality of glucose residues having hydroxymethyl groups, the method comprising:
- contacting the cellulosic fiber or fabric with a cationic alkenyl monomer, a thermal initiator, and a crosslinker to form an impregnated cellulosic fiber or fabric;
- and
- curing the impregnated cellulosic fiber or fabric to form a cationized cellulosic fiber or fabric, wherein the cationized cellulosic fiber or fabric comprises cationic polymeric side chains covalently bonded to at least a portion of the hydroxymethyl groups present in the plurality of glucose residues.
23-67. (canceled)
Dependencies are inferred from the claim text.