Investigation on preparation of poly (AM/SSS/AMPS) microspheres by dispersion polymerization system

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Ji, Jingqi^1 ; Ke, Yangchuan^1 ; Ji, Di^2 ; Zhang, Zeling^1 ; Shao, Meiqi^1 ; Liu, Pengfei^1

China University of Petroleum (Beijing), Beijing

102249, China^1

Petro China Fushun Petrochemical Company Catalyst Plant, Fushun

113008, China^2

关键词: Cross linking agents;    Dispersion copolymerization;    Dispersion polymerization;    N-methylenebisacrylamide;    Polyvinyl pyrrolidone;    Potassium persulfate;    Sodium 4-styrenesulfonate;    Stable dispersions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/2/022087/pdf
DOI  :  10.1088/1755-1315/170/2/022087

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The present work had the purpose of developing a class of terpolymer plugging microspheres for petroleum engineering. The terpolymer microspheres were prepared by dispersion copolymerization of acrylamide (AM), sodium 4-styrenesulfonate (SSS) and 2-acrylamido-2- methyl propane sulfonic acid (AMPS), using ethanol/deionized water as dispersion medium, polyvinyl pyrrolidone (PVP) as dispersant, N,N-methylenebisacrylamide (MBA) as crosslinking agent and potassium persulfate (KPS) as initiator. The influences of dispersion medium volume ratio, concentration of dispersant, pH value and stirring speed on the stability of dispersion system were investigated. The results showed that the stable dispersion system was obtained when ethanol-water ratio was 50:50 (v: v), the dispersant content was 15 wt. % (total mass of monomers), pH value was 7 and stirring speed was 200 r/min, which was suitable for ternary dispersion polymerization. FTIR spectrum and SEM images indicated the structure and surface morphology of microspheres.