| EPSRC Reference: |
GR/J25994/01 |
| Title: |
SYNTHESIS AND PROPERTIES OF CYCLIC AMPHIPHILIC BLOCK COPOLYMERS |
| Principal Investigator: |
Price, Professor C |
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| Department: |
Chemistry |
| Organisation: |
Victoria University of Manchester, The |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 February 1994 |
Ends: |
31 January 1997 |
Value (£): |
113,134
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| EPSRC Research Topic Classifications: |
| Materials Synthesis & Growth |
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Summary on Grant Application Form |
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Amphiphilic block copolymer rings will be prepared by cyclisation of hydroxy-terminated polymers using a modified Williamson method. Kinetic and statistical parameters underlying the cyclic reactions will be determined to optimise product yields. The systems to be studied will include di-block cyclics where B is oxybutylene, P oxypropylene, E oxethylene, C methylene and VP I-(2-pyridinyl)ethylene) and tri-block cyclics containing similar combinations of hydrophobic and hydrophilic blocks. The association of the amphiphilic rings in aqueous solution will be studied as a function of concentration and temperature by a range of physical techniques and the results compared with the behaviour of analogous linear systems. The work will encompass both micellisation in dilute solution and the formation of lyotropic liquid-crystal structures in concentrated solutions. The effect of cyclisation on the balance between surface properties and association behaviour in solution will be investigated. The rheological properties of solutions and gels formed from the amphiphilic rings will also be studied and compared with the behaviour of analogous linear systems, as will the interactions of the cyclics with stiff and flexible homopolymers.
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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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Sectors submitted by the Researcher |
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