| 摘要 |
Branched polyamidoamines bearing a plurality of pendant aminoamide moieties exhibit properties which are superior to linear polyamidoamines from which the branched polymers are derived. The branched polyamidoamine is readily prepared by reacting a linear polyamidoamine with an alkyl acrylate or methacrylate to prepare a polymer with pendant ester moieties, The ester moieties are then reacted with an alkylene diamine or a polyalkyene polyamine to produce the pendant aminoamide groups. Ammonium polyamidoamines are prepared by contacting the branched polyamidoamine with an epihalohydrin to form curable ammonium moieties on the branched polyamidoamines. The branched polyamidoamines are particularly useful as curing agents for epoxides; as a demulsification agent, flocculant or dye retention agent. Ammonium polyamidoamines are particularly useful as agents for imparting superior wet strength properties to paper. |
