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Title: Homogenous, aqueous ATRP from functionalised polysaccharides
Author: Simpson, Neil John
ISNI:       0000 0004 2674 8439
Awarding Body: The University of Strathclyde
Current Institution: University of Strathclyde
Date of Award: 2009
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Unilever would like to explore the use of functional polysaccharides in then detergency formulations. The aim of this work was to grow various polymer chains of pre-determined lengths via Atom Transfer Radical Polymerisation (ATRP), from a water-soluble polysaccharide and to understand and improve the process. This work has given Unilever the option to fine tune polysaccharide-graft-copolymers for industrial use, whilst also satisfying a full investigation of these novel initiators, using new techniques developed within this work. In this respect, 'controlled or living' growth of chains from a post-modified, water soluble polysaccharide is reported for the first time using the following water soluble monomers: 4-styrene sulfonic acid sodium salt, 2-(dimethylamino)ethyl niethacrylate, poly(ethylene glycol) methacrylate and sodium methacrylate. Examples of psuedo first order control plots were seen, with linear increase in molecular weight (PDi values from 2 to 1.2) and with high monomer conversions. The addition of a non-ii ATRP appeared to increase monomer conversion.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available