| 摘要 |
<p>A method of increasing retention and drainage in a papermaking furnish comprising adding to the furnish an effective amount of a diallyl-N,N-disubstituted ammonium halide/acrylamide copolymer and an effective amount of a cationic structurally-modified water soluble polymer, wherein the cationic structurally-modified water-soluble polymer prepared by initiating polymerization of an aqueous solution of from about 95 to about 5 mole percent of an acrylamide monomer, and from about 5 to about 95 mole percent of a cationic monomer, and adding at least one structural modifier to the polymer solution after at least 30 % polymerization of the monomers has occurred.</p> |
