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Postgraduate research project

Triggered self-healing in molecular chain mail; stimuli responsive mechanically interlocked polymers

Funding
Competition funded View fees and funding
Type of degree
Doctor of Philosophy
Entry requirements
2:1 honours degree
View full entry requirements
Faculty graduate school
Faculty of Engineering and Physical Sciences
Closing date

About the project

During this DSTL funded PhD project you will combine supramolecular concepts to develop novel materials that can be ‘reset’ through the application of light. This will be achieved by combining mechanically interlocked polymers with photoswitching molecules to create light responsive impact resistant materials.

Materials that are capable of resisting impacts have a wide range of civilian and military applications, including dampeners, body armour and suspension systems. However, traditional impact resistant materials are rendered irreversibly less effective after absorbing shock, which makes them unsuitable for applications with repeated impact. In this project, you will overcome these limitations by creating impact resistant materials which can be triggered to relax back into a state, which allows them to be re-used again and again in a controlled manner.

During this project you will gain extensive experience in organic synthesis, as well as the photophysical characterisation of molecules. This will include the use of a bespoke in-situ irradiation NMR set up recently built at UoS. You will then use the photoswitches that you have synthesised to create polymeric organo-/hydrogel materials and will receive training in the relevant material characterisation techniques, in collaboration with the University of Glasgow.

Once a set of materials with desirable characteristics have been identified, impact experiments using the light-gas gun situated at the University of Kent will be performed, assess the ability of these materials to “reset” with light. Funding is available for research visits with each of these collaborators. It is envisioned that these materials will have a range of military and civilian uses, such as body armour and dampeners.

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