After graduating B.Sc and Ph.D in Chemistry from the University of St Andrews, Bill Macdonald joined ICI Plastics Division in 1980. He was initially involved in research into advanced materials, primarily liquid crystal polymers, and moved into the Polyester Films Business in the early 1990’s. The Films Business was sold to DuPont and Bill MacDonald is currently a Business Research Associate in DuPont Teijin Films (DTF), a 50:50 joint venture between DuPont and Teijin. He is currently actively involved in developing substrates for flexible electronic and PV applications and in understanding the material requirements required for this emerging industry. He has coauthored ca 40 papers, several book chapters and regularly presents on the flexible electronic conference “circuit”.