Alfred Rudin is a member of the Professional Engineers of Ontario. Professor Rudin spent 14 years with a large Canadian chemical company in research, development, and production. He joined the University of Waterloo chemistry department where he is now a Distinguished Professor Emeritus. He is the author or co-author of 295 research papers and 25 patents. Dr. Rudin is also a fellow of the Chemical Institute of Canada, the Royal Society of Canada, and the Federation of Societies for Coatings Technology.Professor Phillip Choi is currently the Dean of Engineering at the University of Regina and a Professor Emeritus at the University of Alberta. His research focuses on polymer solution thermodynamics and polymer dynamics. He is the co-author of 3 book chapters and 145 research papers and 1 US patent. Professor Choi is a registered Professional Engineer in the provinces of Alberta and Saskatchewan and a federal court approved expert witness in polymer science and engineering. He is a Fellow of the Chemical Institute of Canada, Engineering Institute of Canada and Royal Society of Chemistry (UK). He received his B.A.Sc. in chemical engineering from the University of British Columbia and his M.A.Sc. and Ph.D., both in chemical engineering, from the University of Waterloo. Professor Choi has worked as a visiting/research scientist at Xerox Research Centre of Canada, Sternson Construction Limited, NOVA Chemicals Corporation, and Institute of Polymer Science at the University of Akron.