Synthesis,Characterization and Flocculability of a Poly (p-Ethylstyrene -Acrylamide- Propenohydroxamic Acid)

Abstract:

A novel poly (p-ethylstyrene-acrylamide-propenohydroxamic acid) was synthesized. Copolymerization of acrylamide and p-ethylstyrene was carried out at 30°C in a microemulsion system, in which AM aqueous solution was the continue phase and p-ethylstyrene was the dispersed phase using ST-80 as surfactants respectively. Polymers of hydroxamic functions were prepared with hydroxylamine sulfate at temperatures from 60 °C-85°C and pH=10. The molecular weights were measured through the viscose method and the copolymers were characterized by FT-IR, UV and DSC. The effect of the polymer structure on the process of red mud setting was investigated. The results show that the optimal experimental condition is the hydroxamic acid flocculants contains 10.5% p-ethylphenylethylene and the molecular weight of synthesized product is 11×106; The polymer provides dramatically lower overflow solids at higher mud settling rates than hydroxamic acid flocculant.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 2065-2071
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.2065
• Online since: January 2013
• Authors: Feng Chen, Zi Qiang Chen, Lei Wang, Xu Shao, Hao Yu Zhao
• Keywords: Acrylamide, Flocculability, Hydroximic Acid, P-Ethylstyrene, Synthesis

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