Geoffrey Allen

Sir Geoffrey Allen FRS FREng (born 1928) is a British chemist who has also served as a Vice-President of the Royal Society. He is primarily known for his work on the physics and chemistry of polymers. He is especially well known for his work on the thermodynamics of rubber elasticity. He inspired a generation of physical chemists as a result of his research interests, and he displayed a passion for fostering links between academia and industry.

Born in Clay Cross, Derbyshire, Allen was educated at Tupton Hall Grammar School and the University of Leeds. He was Lecturer (1955–65) and Professor of Chemical Physics (1965–75) at the University of Manchester. Moving to London, he became Professor of Polymer Science (1975–76), Professor of Chemical Technology (1976–81) at Imperial College London. He chaired the Science Research Council from 1977–81.

Allen was Head of Research at Unilever from 1981–90, and a Director of Unilever from 1982–90. Since 1990 he has been an Adviser to Kobe Steel Ltd. He was Vice-President of the Royal Society from 1991–93, and Chancellor of the University of East Anglia from 1993–2003. He was a member of the Royal Commission on Environmental Protection from 1994–2000, and President of the Institute of Materials, Minerals and Mining, (formerly the Institute of Materials) from 1994–95. Since 1980 he has been a Visiting Fellow at Robinson College, Cambridge.

Allen was awarded an honorary doctorate from the University of Essex in 1986, and an honorary doctorate from Loughborough University in July 1985, when he was pleased to share the stage with his God Son who received his bachelors degree at the same time.

Allen is a past president (1989 – 1991) of the Society of Chemical Industry, gave the Leverhulme lecture in 1990 (Our Chemical Industry 2001), and was awarded the society's Lampitt medal in 2017.