PhD Studentship: Entangled Polymers with Designer Properties

Background – polycatenane synthesis is an unsolved problem

Linking rings in a chain is a familiar idea in the macroscopic world and the equivalent concept has been discussed at a molecular level for over a century. However, linking molecular rings together to make a structure called a polycatenane has remained out of reach. Although theoretical studies suggest that such materials would have enhanced mechanical properties compared to simple covalent polymers (1), the challenge lies in selectively linking rings together at the molecular level with the required level of control. Even the best methods currently available produce a complex mixture of products that is far from suitable for real-world applications (2).

The project – mechanically chiral molecules as catalysts

The successful candidate will join a vibrant, diverse group of researchers to apply high-yielding methods for the synthesis of catenanes (e.g, 3) developed by the Goldup Group (https://golduplab.org/) to the synthesis of polycatenanes and study their mechanical properties. The goal of the project is to identify and optimise methodologies that allow polycatenanes to be made with control over their structure, dispersity and structure in order to develop materials with designer properties. The project lies at the interface of synthetic organic chemistry, and materials science and would suit a candidate who is interested in addressing a challenging problem in both by developing new reactions and concepts.

The Goldup Group

Research in the Goldup Group at the University of Birmingham focusses on the synthesis, properties and applications of mechanically interlocked molecules such as rotaxanes and catenanes. This work takes place at the interface of synthetic organic and supramolecular chemistry and collaborations with a range of other disciplines from materials science to chemical biology.

Training and mentoring

The successful candidate will receive training in synthetic organic chemistry and materials science from the Goldup Group and their collaborators. They will gain extensive experience of a range of analytical techniques including advanced NMR, single crystal x-ray diffraction, GPC and HPLC analysis and the mechanical evaluation of materials. They will be mentored by Professor Goldup to improve their scientific writing, presentation skills and ability to design and execute new scientific projects. Completing a PhD in the Goldup Group will prepare students for leadership roles in scientific research, as well as positions across the scientific sector more generally.

Application process

Candidates should normally have, or expect to receive, a first or upper second (2.1) class Masters degree (or equivalent). Interested candidates should contact Professor Goldup by email (s.m.goldup@bham.ac.uk) in the first instance with a copy of their CV and a covering letter outlining their research interests. The School of Chemistry is keen to achieve a gender and diversity balance across the School and welcome applicants from all backgrounds. The School holds an Athena SWAN Bronze Award, which recognises its work in promoting women’s careers in science, technology, engineering, mathematics and medicine (STEM) in higher education.

Funding notes:

This 3.5 year studentship includes a tax-free stipend and tuition fees at the standard UKRI rate (stipend was £19,237 academic year 2024-2025). We offer a fully-funded programme of integrated research and skills training. Support for conference attendance and research materials will be available. Please note that, due to funding restrictions, applicants not eligible for UK home fee status will only be considered in exceptional circumstances.

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