title: Research on the synthesis and scale inhibition performance of a new terpolymer scale inhibitor.
abstract: A new terpolymer named β-CD-MA-SSS was produced using free-radical polymerization of β-cyclodextrin (β-CD), maleic-anhydride (MA) and sodium-styrene-sulfonate (SSS) as monomers, with potassium persulfate (KPS) as initiator. Its performance as a scale inhibitor to prevent deposition of calcium carbonate (CaCO3) has been investigated. Experimental results demonstrated that β-CD-MA-SSS performed excellent scale inhibition and exhibited a high conversion rate under the following conditions: initiator consisting of 6%, molar ratio of reaction monomers SSS:MA = 0.8:1, MA:β-CD = 6:1, reaction temperature of 80 °C, reaction time of 6 h, and dropping time of 40 min when MA was dosed as a substrate, and SSS and KPS were dosed as dropping reactants simultaneously. Use of a Fourier transform infrared spectrometer for this inhibitor showed that the polymerization reaction had taken place with the reaction monomers under the above specified conditions. Scanning electron microscopy indicated that the β-CD-MA-SSS had a strong chelating ability for calcium (Ca(2+)) and a good dispersion ability for calcium carbonate (CaCO3).
authors.affiliation: School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China E-mail: limeng189@126.com.
authors.forename: Yufei
authors.initials: Y
authors.lastname: Bao
authors.affiliation: School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China E-mail: limeng189@126.com.
authors.forename: Meng
authors.initials: M
authors.lastname: Li
authors.affiliation: School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China E-mail: limeng189@126.com.
authors.forename: Yanqing
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D002384:Catalysis; D008299:Maleic Anhydrides / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D058105:Polymerization; D011108:Polymers / Q000737:chemistry*; D011137:Polystyrenes / Q000138:chemical synthesis*; D017680:Potassium Compounds / Q000737:chemistry; D013431:Sulfates / Q000737:chemistry; D013451:Sulfonic Acids / Q000737:chemistry*; D013696:Temperature; D047392:beta-Cyclodextrins / Q000737:chemistry*
chemical_list: D008299:Maleic Anhydrides; D011108:Polymers; D011137:Polystyrenes; D017680:Potassium Compounds; D013431:Sulfates; D013451:Sulfonic Acids; D047392:beta-Cyclodextrins; C009007:potassium persulfate; C031215:betadex; C077114:styrenesulfonic acid polymer