2011•Journal of Shaanxi University of Science & TechnologyRequires access

SYNTHESIS OF A NOVEL POLYCARBOXILIC ACID SERIES DISPERSANT AND ITS PROPERTIES

Zang Guang-hua

Abstract

A novel polycarboxylic coal water slurry dispersant was prepared by solution polymerization of polyethylene glycol-itaconic acid ester and styrene sulfonate and methacrylic acid as monomers,with K2S2O8 as initiator.The macromolecular polymer was characterized and analyzed by IR,TG-DTA.The effects of the monomer ratio,reaction temperature initiator usage on the dispersant′s performance were investigated,which confirmed the optimal reaction condition.The result showed that,when the concentration reached 68% of the CWS,the apparent viscosity would be 968.33 MPa·s.

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Key concepts: Dispersant, Itaconic acid, Monomer, Methacrylic acid, Polymer chemistry, Styrene, Sulfonate, Polymerization