Polymer structure and dynamics in solution, gel, network and on interfaces; Monolayer dynamics and structure; Chemical reactivity on monolayers.

1962~1963 미국 Dartmouth College 연구원
1963~1967 미국 National Bureau of Standards, Washington, DC 연구원
1967~ 미국 Wisconsin-Madison대학교 조교수, 부교수, 교수
1984~1985 Johannes Gutenberg Universit t, Mainz, Germany 방문교수
1991~1996 Evan P. Helfaer Professor of Chemistry, University of Wisconsin-Madison
1996~ Ealter H. Kodak Professor of Chemistry, University of Wisconsin-Madison
1998~ Walter H. Stockmayer Professor of Chemistry

1972 Fulbright-Hays Lectureship
1984 John Simon Guggenheim Fellowship
1988 Fellow of American Physical Society
1992 독일 Alexander von Humboldt Research 상
1994 미국물리학회 High Polymer Physics 상
1997 호암상
1999 일본 Distinguished Services to Polymer
Science 상
1999 미국화학회 Langmuir Lecture Award