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Selective Radioactive Decontamination employing Dual Stimuli Responsive N-Aza crown ether containing polymer hydrogels

Published online by Cambridge University Press:  01 February 2011

Dario Deli ,
David J Crouch ,
Kathleen Law ,
Stephen G Yeates  and
Francis Livens
Dario Deli
Affiliation:
[email protected], University of Manchester, OMIC, Manchester, United Kingdom
David J Crouch
Affiliation:
[email protected], University of Manchester, OMIC, Manchester, United Kingdom
Kathleen Law
Affiliation:
[email protected], University of Manchester, CRR, Manchester, United Kingdom
Stephen G Yeates
Affiliation:
[email protected], University of Manchester, OMIC, Manchester, United Kingdom
Francis Livens
Affiliation:
[email protected], University of Manchester, CRR, Manchester, United Kingdom
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Abstract

We report the synthesis and properties of two different hydrogels based on N-isopropylacrylamide/acrylic acid and copolymers of oligo-ethylene glycol methacrylates incorporating N-Aza crown ethers. Both hydrogels show rapid response to environmental stimuli and their size can be tuned by pH and temperature. Swollen states lead to high adsorption of water and high contact surface area with ions whereas in the collapsed state the material releases water and the ions not selectively retained by the polymer.

Preliminary autoradiography tests show that these materials strongly bind 90Sr and both pH and temperature can be used to fine tune binding selectivity. This results in such materials being promising candidates for use as smart scavenging agents for radioactive decontamination.

Keywords

environmentally protectivepolymerwaste management
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1265: Symposium AA – Scientific Basis for Nuclear Waste Management XXXIV , 2010 , 1265-AA09-07
Copyright
Copyright © Materials Research Society 2010

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