Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (4): 386-391.DOI: 10.11944/j.issn.1000-0518.2015.04.140270

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Synthesis and Characterization of Microgel-Reinforced Polyampholyte Hydrogels

LI Pengchonga, b, XU Kuna, TAN Yinga, WANG Pixina, *   

  1. aChangchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
    bUniversity of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2014-08-04 Revised:2014-11-14 Online:2015-04-10 Published:2015-04-10
  • Contact: Corresponding author:WANG Pixin, professor; Tel/Fax:0431-85262629; E-mail:pxwang@ciac.ac.cn; Research interests:waste water treatment materials and modification of natural polymer
  • Supported by:

    Supported by the Jilin Provincial Science and Technology Development Plan Project(No.20140204083GX, No.20140204064SF), Special Funds for Science and Technology Corporation Projects of the Chinese Academy of Science(No.2013SYHZ0014)

Abstract:

The composite polyampholyte hydrogels (CAH) were prepared by inserting core-shell microgel particles into a bulk polyampholyte matrix. CAH gels with uniform and tight network structure have excellent mechanical performance due to the entanglement between microgels and network chains, and exhibit an antipolyelectrolyte effect and pH-sensitivity. And ionic strength drastically affects their swelling behaviors. Meanwhile, CAH gels show rapid shrinking rate and transmittance switch in response to the temperature change as a result of the incorporation of microgel particles.

 

Key words: core-shell microgels, composite polyampholyte hydrogels, high mechanical strength, pH sensitivity, temperature-sensitive

CLC Number: