Polymer International (PI) publishes the most significant advances in macromolecular science and technology. PI especiallywelcomes research papers that address applications that fall within the broad headings Energy and Electronics, BiomedicalStudies, and Water, Environment and Sustainability. The Journal’s editors have identified these as the major challenges facingpolymer scientists worldwide.The Journal also publishes invited Review, Mini-review and Perspective papers that address these challenges and others thatmay be of growing or future relevance to polymer scientists and engineers.