| Synthesis and Characterization of Self-oscillating P（AA-co-AM）/PEG SemiIPN Hydrogels Based on a p H Oscillator in Closed System |
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| 引用本文： | 任杰.Synthesis and Characterization of Self-oscillating P（AA-co-AM）/PEG SemiIPN Hydrogels Based on a p H Oscillator in Closed System[J].高分子科学,2014,32(12):1581-1589. |
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| 作者姓名： | 任杰 |
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| 作者单位： | Chemistry & Chemical Engineering College, Northwest Normal University, Key Lab of Bioelectrochemtry & Environmental Analysis of Gansu |
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| 基金项目： | financially supported by the Basic Project of Science and Research of Colleges and Universities of Gansu Province(No.5001-109);the Natural Science Foundation of Gansu Province(No.1010 RJZA015) |
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| 摘 要： | 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 p Hresponsive behavior, salt sensitivity, oscillatory swelling/de-swelling behaviors in different solutions with various p H values and self-oscillating behaviors in bath p H oscillator were investigated in detail. The results revealed that the prepared hydrogels exhibited high p H sensitivity and excellent salt sensitivity when the p H 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 Br O3？-SO32？-Fe（CN）64？-H＋. This study may create a new possibility as biomaterial for new self-walking actuators and other devices.
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| 关 键 词： | 封闭系统 水凝胶 PEG 振荡器 自激振荡 合成 半互穿聚合物网络 扫描电子显微镜 |
Synthesis and characterization of self-oscillating P(AA-co-AM)/PEG semi-IPN hydrogels based on a pH oscillator in closed system |
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| Li-ping Wang,Jie Ren,Meng-qi Yao,Xiao-ci Yang,Wu Yang,Yan Li.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. |
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| Authors: | Li-ping Wang Jie Ren Meng-qi Yao Xiao-ci Yang Wu Yang Yan Li |
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| Institution: | 1. Chemistry & Chemical Engineering College, Northwest Normal University, Key Lab of Bioelectrochemtry & Environmental Analysis of Gansu, Lanzhou, 730070, China
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| Abstract: | P（AA-co-AM）/PEG semi-IPN hydrogel Self-oscillating p H-responsive. |
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| Keywords: | P(AA-co-AM)/PEG semi-IPN hydrogel Self-oscillating p H-responsive |
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