After his PhD, he completed postdoctoral studies at the University of Wisconsin in chemical engineering. Subsequent post-doctoral studies were completed in physical chemistry at the University of Adelaide, South Australia, and Yale University in Connecticut. In 1967, he was hired as an assistant professor in the department of chemical engineering at Carnegie Mellon University, followed by promotion to associate professor in 1970 and full professor in 1973. During his time at Carnegie Mellon University, he completed a sabbatical year at Unilever in the United Kingdom. In 1980, Ed joined the Department of Chemical Engineering and Materials Science at the University of Minnesota in Minneapolis. During his time at Minnesota, Ed has taken sabbaticals at MIT and the University of Cambridge.
