Polyacrylamide as well as preparation method and application thereof

• Main Authors: LU PING, DONG JIAN, SUN LI, HE NINGDE, HU LIUJIANG
• Format: Patent
• Language: Chinese; English
• Published: 14.05.2014
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention discloses polyacrylamide as well as a preparation method and application thereof, belonging to the technical field of high polymer compounds and preparation methods and application thereof. In the preparation method, nickel sulfate-sodium borohydride is taken as an oxidation reduction system, Ni<2+> is reduced into a Ni(0)-B colloidal solution under the protection of polyvinylpyrrolidone, and potassium peroxodisulfate is added as an initiator for initiating the polymerization of acrylamide (AM) to prepare the polyacrylamide. The method is carried out at the normal temperature without heating to a high temperature, so that the energy consumption is lowered. Moreover, nitrogen is not introduced for deoxygenizing, so that the phenomenon of implosion is avoided, the preparation process condition of polyacrylamide is simplified, and energy needed in preparation is saved. Meanwhile, the molecular weight of the polyacrylamide prepared by using the method can be controlled between 350,000 and 1,600,000,