Experimental evidence of large amplitude pH mediated autonomous chemomechanical oscillation

Xin Yang; Yi Zhou; Lin Ji; Yanhui Ding; Jianquan Wang; Xin Liang

doi:10.3390/polym9110554

Experimental evidence of large amplitude pH mediated autonomous chemomechanical oscillation

Xin Yang
, Yi Zhou
, Lin Ji^*
, Yanhui Ding
, Jianquan Wang
, Xin Liang

^*Corresponding author for this work

School of Material Science and Engineering

Capital Normal University
Beijing Institute of Technology
Xi'an Satellite Control Centre (XSCC)

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Large amplitude autonomous chemomechanical oscillations were observed in a coupled system consisting of a porous pH-responsive hydrogel and a bromate-sulfite-manganese (II) pH oscillatory reaction. The porous structure effectively improves the chemomechanical response speed, and the negative feedback species of the bulk oscillation Mn²⁺ takes part in the coupling by forming complex and physical crosslinks with the responsive group in the gel. It strengthens the porous gel by forming additional networks, which may contribute to sustaining the long-lasting chemomechanical oscillation. Additionally, the interaction between Mn²⁺ and the hydrogel alters the period of the oscillatory reaction due to its binding competition with H⁺, the positive feedback species.

Original language	English
Article number	554
Journal	Polymers
Volume	9
Issue number	11
DOIs	https://doi.org/10.3390/polym9110554
Publication status	Published - 25 Oct 2017

Keywords

Autonomous chemomechanical system
pH responsive hydrogel

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title = "Experimental evidence of large amplitude pH mediated autonomous chemomechanical oscillation",

abstract = "Large amplitude autonomous chemomechanical oscillations were observed in a coupled system consisting of a porous pH-responsive hydrogel and a bromate-sulfite-manganese (II) pH oscillatory reaction. The porous structure effectively improves the chemomechanical response speed, and the negative feedback species of the bulk oscillation Mn2+ takes part in the coupling by forming complex and physical crosslinks with the responsive group in the gel. It strengthens the porous gel by forming additional networks, which may contribute to sustaining the long-lasting chemomechanical oscillation. Additionally, the interaction between Mn2+ and the hydrogel alters the period of the oscillatory reaction due to its binding competition with H+, the positive feedback species.",

keywords = "Autonomous chemomechanical system, pH responsive hydrogel",

author = "Xin Yang and Yi Zhou and Lin Ji and Yanhui Ding and Jianquan Wang and Xin Liang",

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T1 - Experimental evidence of large amplitude pH mediated autonomous chemomechanical oscillation

AU - Yang, Xin

AU - Zhou, Yi

AU - Ji, Lin

AU - Ding, Yanhui

AU - Wang, Jianquan

AU - Liang, Xin

PY - 2017/10/25

Y1 - 2017/10/25

N2 - Large amplitude autonomous chemomechanical oscillations were observed in a coupled system consisting of a porous pH-responsive hydrogel and a bromate-sulfite-manganese (II) pH oscillatory reaction. The porous structure effectively improves the chemomechanical response speed, and the negative feedback species of the bulk oscillation Mn2+ takes part in the coupling by forming complex and physical crosslinks with the responsive group in the gel. It strengthens the porous gel by forming additional networks, which may contribute to sustaining the long-lasting chemomechanical oscillation. Additionally, the interaction between Mn2+ and the hydrogel alters the period of the oscillatory reaction due to its binding competition with H+, the positive feedback species.

AB - Large amplitude autonomous chemomechanical oscillations were observed in a coupled system consisting of a porous pH-responsive hydrogel and a bromate-sulfite-manganese (II) pH oscillatory reaction. The porous structure effectively improves the chemomechanical response speed, and the negative feedback species of the bulk oscillation Mn2+ takes part in the coupling by forming complex and physical crosslinks with the responsive group in the gel. It strengthens the porous gel by forming additional networks, which may contribute to sustaining the long-lasting chemomechanical oscillation. Additionally, the interaction between Mn2+ and the hydrogel alters the period of the oscillatory reaction due to its binding competition with H+, the positive feedback species.

KW - Autonomous chemomechanical system

KW - pH responsive hydrogel

UR - https://www.scopus.com/pages/publications/85033393210

U2 - 10.3390/polym9110554

DO - 10.3390/polym9110554

M3 - Article

AN - SCOPUS:85033393210

SN - 2073-4360

VL - 9

JO - Polymers

JF - Polymers

IS - 11

M1 - 554

ER -

Experimental evidence of large amplitude pH mediated autonomous chemomechanical oscillation

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Keywords

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