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Acta Chimica Sinica >

2012 , Vol. 70 >Issue 03: 272 - 276

DOI: https://doi.org/10.6023/A1107261

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Ultrasonic Synthesis of pH-Sensitive PMAA Hydrogel

  • LIU Wei-Tao ,
  • LIU Xue-Wen ,
  • ZHU Shen ,
  • LIU Xin-Yi ,
  • HAN Guo-Zhi
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  • a Department of Applied Chemistry, College of Science, Nanjing University of Technology, Nanjing 210009;
    b State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096

Received date: 2011-07-26

  Revised date: 2011-09-09

  Online published: 2011-10-09

Supported by

Project was supported by the China Postdoctoral Science Foundation (No. 20100481084) and Jiangsu Province Postdoctoral Science Foundation (No. 1002006C).

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Abstract

Using methacrylic acid as starting materials, N,N'-methylene bisacrylamide as a crosslinker and potassium persulfate as initiator, pH sensitive poly(methacrylic acid) (PMAA) hydrogel was synthesized by free radical polymerization under ultrasonic radiation. The molecular structure and chemical properties of hydrogel were characterized by IR and SEM. On this basis, impact of ultrasonication on swelling-deswelling of hydrogel was emphatically studied. Experimental results indicated that intelligent hydrogels prepared by ultrasonic synthesis have higher equilibrium swelling ratio and faster response comparing to traditional methods.

Key words： ultrasonic; pH sensitive; poly(methacrylic acid) (PMAA); hydrogel; synthesis

Cite this article

LIU Wei-Tao , LIU Xue-Wen , ZHU Shen , LIU Xin-Yi , HAN Guo-Zhi . Ultrasonic Synthesis of pH-Sensitive PMAA Hydrogel[J]. Acta Chimica Sinica, 2012 , 70(03) : 272 -276 . DOI: 10.6023/A1107261

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