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Issue 30, 2017
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pH-Sensitive amphiphilic block-copolymers for transport and controlled release of oxygen

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Abstract

Saturated fluorocarbons, their derivatives and emulsions are capable of dissolving anomalously high amounts of oxygen and other gases. The mechanistic aspects of this remarkable effect remain to be explored experimentally. Here, the synthesis of a library of amphiphilic fluorous block-copolymers incorporating different fluorinated monomers is described, and the capacity of these copolymers for oxygen transport in water is systematically investigated. The structure of the fluorous monomer employed was found to have a profound effect on both the oxygen-carrying capacity and the gas release kinetics of the polymer emulsions. Furthermore, the release of O2 from the polymer dispersions could be triggered by changing the pH of the solution. This is the first example of a polymer-based system for controlled release of a non-polar, non-covalently entrapped respiratory gas.

Graphical abstract: pH-Sensitive amphiphilic block-copolymers for transport and controlled release of oxygen

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Article information


Submitted
23 Apr 2017
Accepted
30 May 2017
First published
31 May 2017

Polym. Chem., 2017,8, 4322-4326
Article type
Communication

pH-Sensitive amphiphilic block-copolymers for transport and controlled release of oxygen

Y. Patil, S. Almahdali, K. B. Vu, G. Zapsas, N. Hadjichristidis and V. O. Rodionov, Polym. Chem., 2017, 8, 4322
DOI: 10.1039/C7PY00679A

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