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Int. J. Mol. Sci. 2012, 13(12), 16281-16290; doi:10.3390/ijms131216281
Article

Activation Energy of Aggregation-Disaggregation Self-Oscillation of Polymer Chain

*  and
Received: 8 November 2012; in revised form: 25 November 2012 / Accepted: 30 November 2012 / Published: 3 December 2012
(This article belongs to the Section Material Sciences and Nanotechnology)
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Abstract: In this paper, we investigated the activation energies of the aggregation–disaggregation self-oscillation induced by the Belousov-Zhabotinsky (BZ) reaction by utilizing the nonthermoresponsive polymer chain in a wide temperature range. This is because the conventional type self-oscillating polymer chain, with thermoresponsive poly(Nisopropylacrylamide) (poly(NIPAAm) main-chain covalently bonded to the ruthenium catalyst (Ru(bpy)3) of the BZ reaction, cannot evaluate the activation energy over the lower critical solution temperature (LCST). The nonthermoresponsive self-oscillating polymer chain is composed of a poly-vinylpyrrolidone (PVP) main-chain with the ruthenium catalyst (Ru(bpy)3). As a result, we clarified that the activation energy of the aggregation–disaggregation self-oscillation of the polymer chain is hardly affected by the concentrations of the BZ substrates. In addition, the activation energy of the nonthermoresponsive self-oscillating polymer chain was found to be almost the same value as normal BZ reaction, i.e., not including the self-oscillating polymer system with Ru moiety.
Keywords: self-oscillation; polymer chain; BZ reaction; molecular robot self-oscillation; polymer chain; BZ reaction; molecular robot
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Hara, Y.; Jahan, R.A. Activation Energy of Aggregation-Disaggregation Self-Oscillation of Polymer Chain. Int. J. Mol. Sci. 2012, 13, 16281-16290.

AMA Style

Hara Y, Jahan RA. Activation Energy of Aggregation-Disaggregation Self-Oscillation of Polymer Chain. International Journal of Molecular Sciences. 2012; 13(12):16281-16290.

Chicago/Turabian Style

Hara, Yusuke; Jahan, Rumana A. 2012. "Activation Energy of Aggregation-Disaggregation Self-Oscillation of Polymer Chain." Int. J. Mol. Sci. 13, no. 12: 16281-16290.


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