Hoover and Sinkovitz72 developed some new cationic graft copolymers made by the graft
copolymerization of diallyldimethylammonium chloride or 2-hydroxy-3-methacryloyloxypropyl
trimethylammonium chloride and acrylamide onto dextran substrate and their use as additives for improving the dry strength of paper. Larsson