Paper Title:
Influence of the PH Value of Comb-Shaped Polymer on the Adsorption between the Polymer and Ca2+ Ions
  Abstract

Comb-shaped hyper-branched polycarboxylate admixture polymers, both the water-reducing-type JS and slump-retaining-type BT, were prepared, and their adsorption characteristics with Ca2+ ions were studied by conductivity loss experiments. The results indicated that, both the water-reducing-type JS and slump-retaining-type BT, would generate certain electrical conductivity loss in CaCl2 aqueous solutions, suggesting that there was some close adsorption between the polymer and Ca2+ ions, the adsorption was closely related with the pH value of the polymers, the neutral and alkaline samples neutralized by NaOH show an higher adsorption than that non-neutralized. The adsorption was achieved by the strong interaction between carboxylic acid groups in the polymer backbones and Ca2+ ions (rather than Cl- ions)

  Info
Periodical
Advanced Materials Research (Volumes 287-290)
Chapter
New Functional Materials
Edited by
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Pages
626-631
DOI
10.4028/www.scientific.net/AMR.287-290.626
Citation
G. R. Duan, X. Wang, G. H. Huang, Y. Gong, "Influence of the PH Value of Comb-Shaped Polymer on the Adsorption between the Polymer and Ca2+ Ions", Advanced Materials Research, Vols. 287-290, pp. 626-631, 2011
Online since
July 2011
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$32.00
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