1. Department of Materials, Imperial College London, London SW7 2BP, United Kingdom
2. Centre for Composite Materials, Imperial College London, London SW7 2BP, United Kingdom
3. Materials Science Centre, UMIST, Manchester M1 7HS, United Kingdom
4. Centre for Education and Research on Macromolecules (CERM) and Interfaculty Centre for Biomaterials, University of Liége, B‐4000 Liége, Belgium