Michael A. MitchellUSUS7429632 * Mar 26, 2005 Sep 30, 2008 Basf Aktiengesellschaft Surface treatment by crosslinking a superabsorbent polymer particle with solution of ethylene glycol, diglycidyl ether and cosolvents of water and 1,3-propanediol; heating...
A copolymer of ethylene glycol dimethacrylate (EDMA), as a crosslinking monomer, was grafted with methacrylic acid (MAA), as a functional monomer, in the presence of theophylline, as a template. Figure 3 shows this graft polymerization method (9), in which the methacrylic group was introduced...