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Synthesis and characterization of PBTCA‐modified hyperbranched polyether corrosion and scale inhibitors
Author(s) -
Wang Yetao,
Chen Hualin,
Zhang Zhijian,
Huang Henghui,
Liu Bailing,
Ding Keyi
Publication year - 2019
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.48041
Subject(s) - corrosion , adsorption , materials science , nuclear chemistry , cationic polymerization , scanning electron microscope , crystallization , fourier transform infrared spectroscopy , crystal structure , chemistry , chemical engineering , polymer chemistry , organic chemistry , metallurgy , composite material , engineering
In this study, hyperbranched polyether (HBP) with terminal hydroxyl was synthesized from tetrahydrofuran and glycidol by cationic open‐loop polymerization and then modified by 2‐phosphono‐butane‐1,2,4‐tricarboxylic acid to introduce carboxyl and phosphorus to improve corrosion and scale inhibition. The structure of the products (HBPs) was determined by FTIR and 1 H‐NMR. The scale inhibition efficiency ( E ) of calcium carbonate and calcium sulfate reached 99.74 and 97.10% at a concentration of 20 mg/L. X‐ray diffraction and scanning electron microscopy were used to examine crystal type and morphology. The addition of scale inhibitors can inhibit the growth of the calcium scale crystal and destroy the crystal structure. The corrosion inhibition rate of HBPs can reach 72.98% when dosage was 150 mg/L. Polarization curve showed that HBPs was a kind of mixed corrosion inhibitor. The adsorption of HBPs on the surface of carbon steel conformed to Langmuir adsorption, which formed physical adsorption film and inhibited the corrosion process. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 48041.