alexa Synthesis of polyaspartic acid 5-aminooroticacid graft copolymer and evaluation of its scale inhibition and corrosion inhibition performance.


Research & Reviews: Journal of Microbiology and Biotechnology

Author(s): Xu Y

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Polyaspartic acid/5-aminoorotic acid graft copolymer (PASP/5-AOA) was synthesized by the reaction of maleic anhydride, urea and 5-aminoorotic acid (5-AOA). The graft copolymer (PASP/5-AOA) was characterized by FT-IR and UV-VIS analyses. Its performance was evaluated by static scale inhibition method and dynamic corrosion testing. The results showed that PASP/5-AOA possessed super scale inhibition property against CaCO3 and Ca-3(PO4)(2) as well as good corrosion inhibition property. Inhibition efficiency of PASP/5-AOA was close to 100% against CaCO3 when the dosage was 1 mg/L in the simulation experiment. Corrosion inhibition efficiency was close to 60% and scale inhibition efficiency was close to 100% against Ca-3(PO4)(2) when the dosage was 12 mg/L in the simulation experiment. When PASP/5-AOA was added to the solution, CaCO3 and Ca-3(PO4)(2) deposits show flower and cascade patterns with floppy accumulation by scanning electron microscopy (SEM).

This article was published in Desalination and referenced in Research & Reviews: Journal of Microbiology and Biotechnology

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