Native nylon C-CP fibers have a very low density (~20 μmol g-1) of carboxylic acid groups that limits its performance on protein separations. To overcome this challenge, surface modification was done on native nylon fibers by grafting monomer ligands (acrylics) via microwave-assisted free radical polymerization.
Jiang, Liuwei and Marcus, R. Kenneth, "Surface functionalized nylon capillary-channeled polymer (C-CP) fibers for protein ion-exchange separations" (2016). Chemistry Annual Research Symposium. Paper 14.