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Cyclodextrin and methacrylic acid octyl phenols poly(ethylene oxide) ester‐induced synergistic effect in a novel poly(AM‐ co ‐A‐β‐CD‐ co ‐AE) polymer
Author(s) -
Zou Changjun,
Tang Quanwu,
Tan Naidi,
Xiao Pufu,
Hu Xuze
Publication year - 2012
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.201100139
Subject(s) - corrosion , polymer , ethylene oxide , polyacrylamide , materials science , nuclear chemistry , sulfuric acid , chemical engineering , electrochemistry , carbon steel , methacrylic acid , corrosion inhibitor , chemistry , polymer chemistry , organic chemistry , metallurgy , monomer , copolymer , electrode , engineering
Owing to superior properties such as temperature resistance and salt tolerance etc., modified polyacrylamide (PAM) as one of the main injected polymers has been widely investigated to enhance oil production in reservoirs. Herein, a novel poly(AM‐ co ‐A‐β‐CD‐ co ‐AE) polymer was synthesized by utilizing β‐CD and AE to copolymerize with AM and characterized by FT‐IR and SEM. Furthermore, the temperature resistance and salt tolerance of poly(AM‐ co ‐A‐β‐CD‐ co ‐AE) polymer were explored. The results showed that the presence of the poly(AM‐ co ‐A‐β‐CD‐ co ‐AE) polymer better achieved temperature resistance and salt tolerance properties than is the case with PAM, which has potential application for enhancing oil recovery in the high‐temperature and high‐mineralization oilfield. On the other hand, the inhibition performance of poly(AM‐ co ‐A‐β‐CD‐ co ‐AE) polymer as a corrosion inhibitor was evaluated by SEM and electrochemical techniques. SEM observations of the carbon steel surface confirmed the protective role of the corrosion inhibitor. The results of potentiodynamic polarization and EIS measurements on the corrosion inhibition of carbon steel samples in 0.5 M sulfuric acid solutions revealed that the highest inhibition efficiency of it over 90% was obtained, indicating poly(AM‐ co ‐A‐β‐CD‐ co ‐AE) polymer acts as a more efficient corrosion inhibitor for carbon steel.