Synthesis and Characterization of Self-oscillating P(AA-<italic style="font-style: italic">co</italic>-AM)/PEG Semi-IPN Hydrogels Based on a pH Oscillator in Closed System

Li-ping Wang; Jie Ren; Meng-qi Yao; Xiao-ci Yang; Wu Yang; Yan Li

doi:10.1007/s10118-014-1552-4

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Synthesis and Characterization of Self-oscillating P(AA-co-AM)/PEG Semi-IPN Hydrogels Based on a pH Oscillator in Closed System

Updated：2021-06-21

- Synthesis and Characterization of Self-oscillating P(AA-co-AM)/PEG Semi-IPN Hydrogels Based on a pH Oscillator in Closed System
- Chinese Journal of Polymer Science Vol. 32, Issue 12, Pages: 1581-1589(2014)
- Affiliations：
  
  Chemistry & Chemical Engineering College, Northwest Normal University, Key Lab of Bioelectrochemtry & Environmental Analysis of Gansu, Lanzhou 730070, China
- Author bio：
  
  **Jie Ren (任杰), E-mail: jieren@nwnu.edu.cn
- Funds：
- DOI：10.1007/s10118-014-1552-4
  CLC：
- Received：05 March 2014，
  
  Revised：2014-04-04，
  
  Accepted：16 April 2014，
  
  Published：2014-12
- Accepted：
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Li-ping Wang, Jie Ren, Meng-qi Yao, et al. Synthesis and Characterization of Self-oscillating P(AA-co-AM)/PEG Semi-IPN Hydrogels Based on a pH Oscillator in Closed System[J]. Chinese Journal of Polymer Science, 2014, 32(12): 1581-1589. DOI: 10.1007/s10118-014-1552-4.
DOI：

Li-ping Wang, Jie Ren, Meng-qi Yao, et al. Synthesis and Characterization of Self-oscillating P(AA-co-AM)/PEG Semi-IPN Hydrogels Based on a pH Oscillator in Closed System[J]. Chinese Journal of Polymer Science, 2014, 32(12): 1581-1589. DOI: 10.1007/s10118-014-1552-4. DOI：

摘要

Abstract

Various semi-interpenetrating polymer network (semi-IPN) hydrogels composed of pore-forming agent polyethylene glycol (PEG)

acrylic acid (AA) and acrylamide (AM) were prepared by using free radical polymerization with a two-step method. The chemical structures of the synthesized hydrogels were characterized by FTIR spectroscopy and the morphologies were studied by scanning electron microscopy (SEM) method. The swelling properties

such as the pH-responsive behavior

salt sensitivity

oscillatory swelling/de-swelling behaviors in different solutions with various pH values and self-oscillating behaviors in bath pH oscillator were investigated in detail. The results revealed that the prepared hydrogels exhibited high pH sensitivity and excellent salt sensitivity when the pH values of the medium changes from 3.0 and 7.0 and well reversible properties by undergoing a number of swelling/de-swelling recycles. In particular

the hydrogels exhibited self-oscillation behavior in a closed system containing BrO

-Fe(CN)

-H

. This study may create a new possibility as biomaterial for new self-walking actuators and other devices.

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Synthesis and Characterization of Self-oscillating P(AA-co-AM)/PEG Semi-IPN Hydrogels Based on a pH Oscillator in Closed System

DOI：10.1007/s10118-014-1552-4

摘要

Abstract

关键词

Keywords

references