Chan I. Chung is Professor Emeritus at the Rensselaer Polytechnic Institute (RPI), Troy, NY, where he has worked since 1973. He previously worked in industry for companies including Lucky Chemical (now LG) in Korea, Celanese Plastics, Waldron Hartig (both full-time and part-time), and Esso Research & Engineering (now Exxon) in the USA.