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Characterization and anticorrosive properties of poly(2,3‐dimethylaniline)/nano‐Al 2 O 3 composite synthesized by emulsion polymerization
Author(s) -
Li Zhitao,
Ma Li,
Li Wanglin,
Gan Mengyu,
Qiu Wei,
Yan Jun
Publication year - 2013
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.3153
Subject(s) - materials science , thermogravimetric analysis , emulsion polymerization , sulfonic acid , fourier transform infrared spectroscopy , composite number , coating , thermal stability , polymerization , nuclear chemistry , scanning electron microscope , emulsion , cyclic voltammetry , chemical engineering , epoxy , composite material , electrochemistry , polymer chemistry , electrode , chemistry , polymer , engineering
Poly(2,3‐dimethylaniline)/nano‐Al 2 O 3 composite (PAC) was synthesized by emulsion polymerization using dodecyl benzene sulfonic acid as emulsifier and dopant. The structure of PAC was characterized by Fourier fransformation infrared spectroscopy, UV–visible adsorption spectroscopy, and field emission scanning electron microscopy. The thermal stability was studied by thermogravimetric analysis, and the electrochemical performances were studied by cyclic voltammetry measurements. Epoxy coatings containing PAC and poly(2,3‐dimethylaniline) (P(2,3‐DMA)), respectively, were painted on steel, and accelerated immersion tests were performed to evaluate the anticorrosion property of the coatings in 3.5% NaCl solution. The results showed that the addition of PAC and P(2,3‐DMA) could improve the anticorrosion performance of epoxy coating significantly and the PAC coating had higher corrosion resistance than that of P(2,3‐DMA). Copyright © 2013 John Wiley & Sons, Ltd.