READ ME This text describes the data presented in the paper: ======================== Introductory information ======================== Files included in the data deposit (include a short description of what data are contained): 1) Supplementary information related to the paper. Structure, calculations and electrochemical performance results. Explain the relationship between multiple data sets, if required: Key words used to describe the data: PVBC, SEBS, Polarization ========================== Methodological information ========================== A brief method description – what the data is, how and why it was collected or created, and how it was processed: The data relates to the structure of the SEBS, PVBC obtained from NMR and FTIR. Also, the electrochemical testing was done on different ionomer samples and repeats are presented here. Instruments, hardware and software used: NMR, FTIR, Auotlab, Origin Date(s) of data collection: Nov 2016- Feb 2017 Geographic coverage of data: Newcastle University Data validation (how was the data checked, proofed and cleaned): Repeats were done and also compared with literature Overview of secondary data, if used: ========================= Data-specific information ========================= Definitions of names, labels, acronyms or specialist terminology uses for variables, records and their values: Explanation of weighting and grossing variables: Outline any missing data: ======= Contact ======= Please contact rdm@ncl.ac.uk for further information