Method for Polymerization of Acrylamide Using Ultrasonic Technology

Abstract

The invention belongs to the field of polymer synthesis, and particularly relates to a preparation method for activating a polymerization monomer and an initiator by an ultrasonic treatment technology to prepare instant ultrahigh-intrinsic viscosity anionic polyacrylamide dry powder. The preparation method comprises the following steps: performing ultrasonic activation treatment on deionized water, an aqueous acrylamide solution, sodium carbonate, a cosolvent and a chain transfer agent, and adding the initiator treated by ultrasonic activation for performing polymerization reaction. Through ultrasonic treatment on the raw materials and the initiator, activity of an acrylamide monomer and the initiator are enhanced, the amount of the initiator required during polymerization is reduced, the initiating temperature is lower, and an obtained polymer has higher intrinsic viscosity and better solubility.

Description

technical field

[0001] The invention belongs to the field of polymer synthesis, and specifically relates to a method for preparing instant ultra-high intrinsic viscosity anionic polyacrylamide dry powder by activating polymerization monomers and initiators by ultrasonic treatment technology. Background technique

[0002] Anionic polyacrylamide dry powder with instant characteristics and ultra-high intrinsic viscosity is widely used as a water-soluble polymer product in sewage treatment, oilfield drilling, papermaking and tertiary oil recovery industries. Especially in oil extraction, especially in the stage of tertiary oil recovery, in low-temperature, low-salt oil reservoir environment, the higher the intrinsic viscosity of the polymer, the higher the oil recovery efficiency, and the solubility of the polymer also has a great impact on the product. Efficiency of use is critical. Therefore, both scientific research institutions and manufacturers are constantly conducting re...

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