| EPSRC Reference: |
GR/S33925/01 |
| Title: |
Nitroxide-Mediated Radical Polymerisation in Miniemulsion |
| Principal Investigator: |
Cameron, Professor N |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Chemistry |
| Organisation: |
Durham, University of |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
05 March 2004 |
Ends: |
04 June 2006 |
Value (£): |
155,994
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| EPSRC Research Topic Classifications: |
| Design & Testing Technology |
Materials Characterisation |
| Materials Synthesis & Growth |
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| EPSRC Industrial Sector Classifications: |
| Manufacturing |
Chemicals |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The research programme concerns development of nitroxide mediators and alkoxyamine initiators suitable for effecting controlled nitroxide-mediated radical polymerisation in miniemulsion at temperatures below 100 C. Synthesis and characterisation of nitroxides and alkoxyamines, and their evaluation in bulk polymerisations, will be carried out at Durham (N RC). Miniemulsion polymerisation and characterisation of films from the latexes produced will be performed at UMIST (PAL). New nitroxides and alkoxyamines, designed for use below 100 C and to have low water solubility, will be sysnthesised and the kinetics of their exchange reactions determined. They will be tested in bulk polymerisations of styrene, S, and butyl acrylate, BA, (homopolymerisation; statistical and block copolymerisation) to identify optimum species for use below 100 C through correlation of polymerisation rate and level of control with nitroxide/alkoxyamine structure. Partitioning of the nitroxides and alkoxyamines between aqueous and hydrophobic organic phases will be investigated in order to establish which of these species have sufficient hydrophobicity for use in minimeulsion polymerisation. The mono- and di-alkoxyamines satisfying the criteria will be converted to (low molar mass) polymeric versions for use as initiators in miniemulsion polymerisation studies aimed at preparing S/BA copolymers, in particular polySpolyBA-polyS triblock copolymers that show thermoplastic elastomer behviour. Coatings from the latexes obtained will be characterised for thermal and mechanical properties.
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Key Findings |
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Potential use in non-academic contexts |
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Impacts |
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| Description |
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| Summary |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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