Bachelor of Science, Willamette U., 1976; Doctor of Philosophy, University of Wisconsin, 1981.
National Research Council postdoctoral fellow, National Bureau Studies, Gaithersburg, Maryland., 1981-1982; research associate, University of Wisconsin, Madison, 1983-1984; from assistant to associate professor of chemistry, University of Southern California, Los Angeles, 1984-1995; group leader, National Institute Studies and Technology, Gaithersburg, since 1995. Member of advisory board Macromolecular Chemistry and Physics, since 1994, Macromolecular Rapids Comm., since 1994.
Fellow American Physical Society. Member American Chemical Society.
Married Marilyn Johnston. 1 child, Jennifer.