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Vermiculite/polyacrylamide copolymers microspheres for profile control in oilfields
Author(s) -
Ma Guoyan,
Shen Yiding,
Wang Xiaorong,
Guo Xing,
Wu Zhe
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.44918
Subject(s) - polyacrylamide , copolymer , materials science , vermiculite , monomer , acrylic acid , polymer chemistry , emulsion polymerization , chemical engineering , fourier transform infrared spectroscopy , acrylamide , emulsion , polymerization , sulfonic acid , particle size , dynamic light scattering , nuclear chemistry , chemistry , polymer , composite material , nanoparticle , engineering , nanotechnology
Polyacrylamide copolymers (PAMVT) microspheres were prepared through inverse emulsion polymerization by using acrylic acid (AA), 2‐acrylamido‐2‐methylpropane sulfonic acid (AMPS) as functional monomers, N , N ′‐methylene bis ‐acrylamide (MBA) as crosslinker and modified vermiculite (MVMT) with the single‐factor experiments. The initial and swelled particle sizes were tested through the dynamic light scattering (DLS). The swelled particle size under the optimum conditions could be 1.98 μm. The structure was characterized through Fourier transform infrared (FTIR), which indicated that vermiculite has successfully modified and the polymerization reaction was completed. The scanning electron microscopy (SEM) shows that MVMT was evenly filled with PAM copolymers. The water absorption capacity can be up to 80.2%. The recovery efficiency of the water flooding was increased from 69.33% to 77.56%. All these results indicated that the microspheres emulsions could be used as profile control agent to enhance the recovery efficiency. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 44918.