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Synthesis, characterization and swelling properties of a chemically cross-linked poly(vinyl alcohol) hydrogel

  • Research Article
  • Published:
Frontiers of Chemistry in China

Abstract

A poly(vinyl alcohol) hydrogel was prepared by coupling poly(vinyl alcohol) with epichlorohydrin as the cross-linking agent. The structure of the hydrogel was characterized by FTIR and GPC techniques. Various amounts of water were added into the dry gel to swell it, and the quantity of water in various states in the partially swollen hydrogel was determined by DSC technique. The analytical results indicate that the water introduced into the dry gel first combines with the hydrophilic groups of the network chains through hydrogen bond forming non-freezable water. The weight ratio of the non-freezable water to dry gel in the hydrogels is about 0.20. After the non-freezable water is saturated, the additional water penetrates the network space and exists simultaneously both in the freezable and free water states until reaching equilibrium swelling.

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Authors and Affiliations

  1. College of Material Science & Engineering, South China University of Technology, Guangzhou, 510641, China

    Li Wenbo, Xue Feng & Cheng Rongshi

  2. Key Laboratory of Mesoscopic Materials Science, College of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, China

    Cheng Rongshi

Authors
  1. Li Wenbo
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  2. Xue Feng
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  3. Cheng Rongshi
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Corresponding author

Correspondence to Li Wenbo.

Additional information

Translated from Acta Polymeric Sinica, 2006, (5): 671–675 (in Chinese)

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Li, W., Xue, F. & Cheng, R. Synthesis, characterization and swelling properties of a chemically cross-linked poly(vinyl alcohol) hydrogel. Front. Chem. China 2, 188–192 (2007). https://doi.org/10.1007/s11458-007-0038-0

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  • DOI: https://doi.org/10.1007/s11458-007-0038-0

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