Molecular design and functional control of novel self-oscillating polymers

Yusuke Hara, Shingo Maeda, Shuji Hashimoto, Ryo Yoshida

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

If we could realize an autonomous polymer system driven under biological conditions by a tailor-made molecular design, human beings could create unprecedented biomimetic functions and materials such as heartbeats, autonomous peristaltic pumps, etc. In order to achieve this objective, we have investigated the molecular design of such a polymer system. As a result, we were the first to demonstrate a self-oscillating polymer system driven in a solution where only malonic acid existed, which could convert the chemical energy of the Belousov-Zhabotinsky (BZ) reaction into a change in the conformation of the polymer chain. To cause the self-oscillation in solution, we have attempted to construct a built-in system where the required BZ system substrates other than the organic acid are incorporated into the polymer itself. That is, the novel polymer chain incorporated the metal catalyst of the BZ reaction, a pH-control site and an oxidant supply site at the same time. As a result of introducing the pH control and oxidant supply sites into the conventional-type self-oscillating polymer chain, the novel polymer chain caused aggregation-disaggregation self-oscillations in the solution. We clarified that the period of the self-oscillation of the novel self-oscillating polymer chain was proportional to the concentration of the malonic acid. Therefore, the concentration of the malonic acid can be determined by measuring the period of the novel self-oscillating polymer solution. In this review, we introduce the detailed molecular design of the novel self-oscillating polymer chain and its self-oscillating behavior. Moreover, we report an autonomous self-oscillating polymer gel actuator that causes a bending-stretching motion under the constant conditions.

Original languageEnglish
Pages (from-to)704-718
Number of pages15
JournalInternational Journal of Molecular Sciences
Volume11
Issue number2
DOIs
Publication statusPublished - 2010 Feb
Externally publishedYes

Fingerprint

Polymers
polymers
self oscillation
acids
Oxidants
Acids
chemical energy
Organic acids
Biomimetics
causes
Polymer solutions
biomimetics
Stretching
Conformations
Actuators
Agglomeration
Gels
Metals
Pumps
actuators

Keywords

  • Bz reaction
  • Gel
  • Polymer actuator
  • Self-oscillation; polymer chain

ASJC Scopus subject areas

  • Computer Science Applications
  • Molecular Biology
  • Catalysis
  • Inorganic Chemistry
  • Spectroscopy
  • Organic Chemistry
  • Physical and Theoretical Chemistry

Cite this

Molecular design and functional control of novel self-oscillating polymers. / Hara, Yusuke; Maeda, Shingo; Hashimoto, Shuji; Yoshida, Ryo.

In: International Journal of Molecular Sciences, Vol. 11, No. 2, 02.2010, p. 704-718.

Research output: Contribution to journalArticle

Hara, Yusuke ; Maeda, Shingo ; Hashimoto, Shuji ; Yoshida, Ryo. / Molecular design and functional control of novel self-oscillating polymers. In: International Journal of Molecular Sciences. 2010 ; Vol. 11, No. 2. pp. 704-718.
@article{b4e76b4b709f4173b9cfc53cae660fa4,
title = "Molecular design and functional control of novel self-oscillating polymers",
abstract = "If we could realize an autonomous polymer system driven under biological conditions by a tailor-made molecular design, human beings could create unprecedented biomimetic functions and materials such as heartbeats, autonomous peristaltic pumps, etc. In order to achieve this objective, we have investigated the molecular design of such a polymer system. As a result, we were the first to demonstrate a self-oscillating polymer system driven in a solution where only malonic acid existed, which could convert the chemical energy of the Belousov-Zhabotinsky (BZ) reaction into a change in the conformation of the polymer chain. To cause the self-oscillation in solution, we have attempted to construct a built-in system where the required BZ system substrates other than the organic acid are incorporated into the polymer itself. That is, the novel polymer chain incorporated the metal catalyst of the BZ reaction, a pH-control site and an oxidant supply site at the same time. As a result of introducing the pH control and oxidant supply sites into the conventional-type self-oscillating polymer chain, the novel polymer chain caused aggregation-disaggregation self-oscillations in the solution. We clarified that the period of the self-oscillation of the novel self-oscillating polymer chain was proportional to the concentration of the malonic acid. Therefore, the concentration of the malonic acid can be determined by measuring the period of the novel self-oscillating polymer solution. In this review, we introduce the detailed molecular design of the novel self-oscillating polymer chain and its self-oscillating behavior. Moreover, we report an autonomous self-oscillating polymer gel actuator that causes a bending-stretching motion under the constant conditions.",
keywords = "Bz reaction, Gel, Polymer actuator, Self-oscillation; polymer chain",
author = "Yusuke Hara and Shingo Maeda and Shuji Hashimoto and Ryo Yoshida",
year = "2010",
month = "2",
doi = "10.3390/ijms11020704",
language = "English",
volume = "11",
pages = "704--718",
journal = "International Journal of Molecular Sciences",
issn = "1661-6596",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "2",

}

TY - JOUR

T1 - Molecular design and functional control of novel self-oscillating polymers

AU - Hara, Yusuke

AU - Maeda, Shingo

AU - Hashimoto, Shuji

AU - Yoshida, Ryo

PY - 2010/2

Y1 - 2010/2

N2 - If we could realize an autonomous polymer system driven under biological conditions by a tailor-made molecular design, human beings could create unprecedented biomimetic functions and materials such as heartbeats, autonomous peristaltic pumps, etc. In order to achieve this objective, we have investigated the molecular design of such a polymer system. As a result, we were the first to demonstrate a self-oscillating polymer system driven in a solution where only malonic acid existed, which could convert the chemical energy of the Belousov-Zhabotinsky (BZ) reaction into a change in the conformation of the polymer chain. To cause the self-oscillation in solution, we have attempted to construct a built-in system where the required BZ system substrates other than the organic acid are incorporated into the polymer itself. That is, the novel polymer chain incorporated the metal catalyst of the BZ reaction, a pH-control site and an oxidant supply site at the same time. As a result of introducing the pH control and oxidant supply sites into the conventional-type self-oscillating polymer chain, the novel polymer chain caused aggregation-disaggregation self-oscillations in the solution. We clarified that the period of the self-oscillation of the novel self-oscillating polymer chain was proportional to the concentration of the malonic acid. Therefore, the concentration of the malonic acid can be determined by measuring the period of the novel self-oscillating polymer solution. In this review, we introduce the detailed molecular design of the novel self-oscillating polymer chain and its self-oscillating behavior. Moreover, we report an autonomous self-oscillating polymer gel actuator that causes a bending-stretching motion under the constant conditions.

AB - If we could realize an autonomous polymer system driven under biological conditions by a tailor-made molecular design, human beings could create unprecedented biomimetic functions and materials such as heartbeats, autonomous peristaltic pumps, etc. In order to achieve this objective, we have investigated the molecular design of such a polymer system. As a result, we were the first to demonstrate a self-oscillating polymer system driven in a solution where only malonic acid existed, which could convert the chemical energy of the Belousov-Zhabotinsky (BZ) reaction into a change in the conformation of the polymer chain. To cause the self-oscillation in solution, we have attempted to construct a built-in system where the required BZ system substrates other than the organic acid are incorporated into the polymer itself. That is, the novel polymer chain incorporated the metal catalyst of the BZ reaction, a pH-control site and an oxidant supply site at the same time. As a result of introducing the pH control and oxidant supply sites into the conventional-type self-oscillating polymer chain, the novel polymer chain caused aggregation-disaggregation self-oscillations in the solution. We clarified that the period of the self-oscillation of the novel self-oscillating polymer chain was proportional to the concentration of the malonic acid. Therefore, the concentration of the malonic acid can be determined by measuring the period of the novel self-oscillating polymer solution. In this review, we introduce the detailed molecular design of the novel self-oscillating polymer chain and its self-oscillating behavior. Moreover, we report an autonomous self-oscillating polymer gel actuator that causes a bending-stretching motion under the constant conditions.

KW - Bz reaction

KW - Gel

KW - Polymer actuator

KW - Self-oscillation; polymer chain

UR - http://www.scopus.com/inward/record.url?scp=77649214238&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77649214238&partnerID=8YFLogxK

U2 - 10.3390/ijms11020704

DO - 10.3390/ijms11020704

M3 - Article

C2 - 20386662

AN - SCOPUS:77649214238

VL - 11

SP - 704

EP - 718

JO - International Journal of Molecular Sciences

JF - International Journal of Molecular Sciences

SN - 1661-6596

IS - 2

ER -