Use this URL to cite or link to this record in EThOS: https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.605470
Title: Smart polymers for the detection of polymeric contamination in fresh water
Author: Swift, Thomas
ISNI:       0000 0004 5358 2315
Awarding Body: University of Sheffield
Current Institution: University of Sheffield
Date of Award: 2014
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Abstract:
The feasibility of using reversible complexation between labelled poly(acrylic acid) and poly(acrylamide) as a low concentration detection method for industrial flocculants has been investigated. Aromatic labels acenaphthylene and 9-anthryl methyl methacrylate have been added to polymer chains to model the behaviour of these polymers in dilute aqueous solutions, demonstrating a molecular weight dependency of the conformational change of poly(acrylic acid). It is shown that interpolymer complexation can be observed via a dramatic rise in anisotropy of a singly labelled sample. Using a single exponential system to model the data a clear concentration gradient can be created, showing the ratio between probe polymer and detected species. This system is robust against a range of salts and other water impurities and other polymers capable of bonding to poly(acrylic acid) have also been investigated. Chains of poly(acrylic acid) were grafted onto solid surfaces in a preliminary investigation into whether it would be possible to integrate this detection system with a reusable solid substrate. Two methods were investigated: ceric ammonium nitrate initiated grafting and reversible addition-fragmentation chain transfer copolymerisation.
Supervisor: Stephen, Rimmer Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.605470  DOI: Not available
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