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Segmental mobility studies of poly(N-isopropyl acrylamide) interactions with gold nanoparticles and its use as a thermally driven trapping system
Rehman, K. Hoskins, Richard Hickey, Stephen G.
Rehman, K.
Hoskins, Richard
Hickey, Stephen G.
Publication Date
2018-07
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Š 2018 The Authors. Published by WILEYâVCH Verlag GmbH & Co. KGaA, Weinheim
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
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2018
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Abstract
Thermal desolvation of poly(Nâisopropylacrylamide) (PNIPAM) in the presence of a low concentration of gold nanoparticles incorporates the nanoparticles resulting in suspended aggregates. By covalently incorporating <1% acenaphthylene into the polymerization feed this copolymer is enabled to be used as a model to study the segmental mobility of the PNIPAM backbone in response to gold nanoparticles both below and above the desolvation temperature, showing that there is a physical conformational rearrangement of the soluble polymer at ultralow nanoparticle loadings, indicating low affinity interactions with the nanoparticles. Thermal desolvation is capable of extracting >99.9% of the nanoparticles from their solutions and hence demonstrates that poly(Nâisopropylacrylamide) can act as an excellent scrubbing system to remove metallic nanomaterial pollutants from solution.
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Swift T, Rehman K, Surtees A et al (2018) Segmental mobility studies of poly(N-isopropyl acrylamide) interactions with gold nanoparticles and its use as a thermally driven trapping system. Macromolecular Rapid Communications. 39(14): 1800090.
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