Journal of Materials Science

, Volume 44, Issue 14, pp 3712–3718 | Cite as

Preparation of porous polyacrylate/poly(ethylene glycol) interpenetrating network hydrogel and simplification of Flory theory

  • Qunwei Tang
  • Xiaoming Sun
  • Qinghua Li
  • Jianming Lin
  • Jihuai WuEmail author


In this article, we successfully designed and fabricated polyacrylate/poly(ethylene glycol) interpenetrating network (PAC/PEG IPN) hydrogel by a two-step technique. The influences of synthesis parameters, such as crosslinker dosage and neutralization degree of PAC, on the equilibrium swelling ratio (SR) of the PAC/PEG IPN hydrogel were investigated. Based on Flory theory, a simplified experiential formula \( Q_{{{\text{H}}_{2} {\text{O}}}}^{5/3} = 14.72I^{ - 1} + 207.43 \) was proposed. The results revealed that the theoretical SR of the PAC/PEG IPN hydrogel was consistent with experimental value in the presence of univalent salt solution. In this case, the SR of the hydrogel can be calculated without measurement. While for multivalent salt solutions, the theoretical and experimental results are inconsistent owing to chelations between carboxylic and carboxylate groups of the PAC/PEG hydrogels and the cations in the solution.


Acrylic Acid Crosslinking Density Swell Ratio Ammonium Peroxydisulfate Macromolecule Chain 



This work was supported by grants from the National Natural Science Foundation of China (No. 50572030, 50842027), the Key Science Technology Program by the Ministry of Education, China (No. 206074), Specialized Research Fund for the Doctoral Program of Chinese Higher Education (No. 20060385001), and the National High Technology Research and Development Program of China (863 Program) (No. SQ2008AA03Z2470974).


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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Qunwei Tang
    • 1
  • Xiaoming Sun
    • 1
  • Qinghua Li
    • 1
  • Jianming Lin
    • 1
  • Jihuai Wu
    • 1
    Email author
  1. 1.The Key Laboratory for Functional Materials of Fujian Higher Education, Institute of Material Physical ChemistryHuaqiao UniversityQuanzhouChina

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