Journal of Solution Chemistry

, Volume 42, Issue 1, pp 27–43 | Cite as

Viscometric and Morphological Properties of Novel Magnesium Electrolyte–Polyacrylamide Composite Polymers in Aqueous Solution

  • Khai Ern Lee
  • Imran Khan
  • Norhashimah Morad
  • Tjoon Tow Teng
  • Beng Teik Poh


The viscometric properties of novel magnesium electrolyte–polyacrylamide composite polymers in aqueous solutions were investigated using response surface methodology. Independent factors such as concentration of the magnesium electrolyte (magnesium chloride and magnesium hydroxide), concentration of polyacrylamide, and the solution temperature were taken into account for viscometric modeling. Experiments were carried out according to central composite design, which includes factorial, central and axial points of the factors. Solution viscosity was taken as the response variable. A polynomial model for the viscometric properties was developed using ANOVA and non-linear regression analysis, and the R2 values are 0.9995 and 0.9996 for aqueous solutions of magnesium chloride–polyacrylamide (MCPAM) and magnesium hydroxide–polyacrylamide (MHPAM) composite polymers, respectively. Two diagnostic plots have been constructed to validate the developed models for the natural logarithm of viscosity of aqueous solutions of the MCPAM and MHPAM composite polymers. The least-squares values show that the developed models are adequate for predictive purposes. TEM was used to investigate the morphological properties of MCPAM and MHPAM composite polymers. Magnesium chloride was impregnated into the polyacrylamide chain while magnesium hydroxide was just adsorbed on the surface of the polyacrylamide chain.


Viscosity Morphology Magnesium chloride Magnesium hydroxide Polyacrylamide Composite polymer 



The authors gratefully acknowledge financial support from Universiti Sains Malaysia in the form of a postgraduate fellowship, as well as Research University grant, which have resulted in this paper.

Supplementary material

10953_2012_9952_MOESM1_ESM.doc (36 kb)
Supplementary material 1 (DOC 35 kb)


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Khai Ern Lee
    • 1
  • Imran Khan
    • 1
  • Norhashimah Morad
    • 1
  • Tjoon Tow Teng
    • 1
  • Beng Teik Poh
    • 1
  1. 1.School of Industrial TechnologyUniversiti Sains MalaysiaPenangMalaysia

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