Effect of Mixed Dispersants on Suppression of the Gel Effect during Aqueous Adiabatic Terpolymerization of AM,NaAA,and DMC  

作　　者：Yang Junfeng Zhou Manli Wang Meng 

机构地区：[1]Qingyuan Yakoo Chemical Co.,Ltd,Qingyuan 510640,China [2]Department of Polymer Science and Engineering,South China University of Technology,Guangzhou 510640,China

出　　处：《China Petroleum Processing & Petrochemical Technology》2023年第3期83-91,共9页中国炼油与石油化工（英文版）

基　　金：the Project of Science and Technology Program of Guangzhou City of China(Project Nol.201604020004)for the financial support to this research.

摘　　要：Gelation adversely affects the aqueous adiabatic terpolymerization of acrylamide (AM), sodium acrylate (NaAA),and 2-methacryloyloxyethyl trimethylammonium chloride (DMC). Here, the mixed dispersants sorbitan monooleate (Span80) and polyoxyethylene sorbitan monooleate (Tween 80) were introduced to the terpolymerization system in an attemptto mitigate the gel effect. This enabled the preparation of high-performance amphoteric polyacrylamides, which werecharacterized by Fourier-transform infrared spectroscopy and thermogravimetric analysis. The influences of the dispersanttype and content as well as the hydrophilic-lipophilic balance (HLB) on the gel effect were examined, and the mechanismunderlying the suppression of the gel effect was considered. The obtained results indicated that the gel effect can beeffectively mitigated using an aqueous adiabatic terpolymerization system containing mixed Span 80/Tween 80 dispersantsat various contents. In particular, mixed dispersant contents of 0.6%–0.8% with HLB values of 5.0–6.0 afforded the optimalperformance (e.g., high viscosity, fast aqueous dissolution time, and the like).

关 键 词：gel effect DISPERSANTS amphoteric polyacrylamide TERPOLYMERIZATION 

分 类 号：X703[环境科学与工程—环境工程] TQ427.26[化学工程]