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Derek G. Gray (1941-2026)

Published: 8 June 2026

It is with a heavy heart that we write to inform you that our dear colleague and friend Dr. Derek G. Gray, Professor Emeritus, passed away on Saturday May 30th

Derek was born in Belfast, Northern Ireland on February 9th, 1941. He studied chemistry at Queen’s University, Belfast, Northern Ireland, graduating in 1963. In 1968, he gained a doctorate in polymer chemistry at the University of Manitoba. He continued his research between 1968 and 1971, first at the University of Newcastle-upon-Tyne, England, and then at the University of Toronto. From 1974, he was employed at 91Ë¿¹ÏÊÓÆµ, first as research assistant and then, between 1990 and 2004 held the position of Paprican Adjunct Professor. Between 2004 and 2011, he held the Paprican/NSERC IRC professorship in the properties and applications of cellulose in the Department of Chemistry. He retired in 2011 and was appointed Emeritus Professor. He continued his research long after his retirement, with a number of articles published in the following decade, including a he published in 2020. Mentor to many, Derek’s work concerned the physical properties of cellulose. His research focused mainly on the preparation and properties of cellulose nanocrystals, and the liquid crystalline properties of cellulose-derived materials. His work, including over 210 research articles, patents, and chapters in books brought him national and international recognition, including the 1994 Anselme Payen Award, ACS Cellulose and Renewable Materials Division; the 2013 NSERC Synergy Award (91Ë¿¹ÏÊÓÆµ/FPInnovations/Celluforce), and the 2013 Marcus Wallenberg Prize (awarded by the King of Sweden in person) for cellulose nanocrystal research.

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Derek was warm and friendly, always listening and willing to help. We have fond memories of him having tea daily with his group in the Pulp & Paper building, when he would share a slice of cake and a brief chat with young colleagues and group members. Derek’s passing is a tremendous loss to all of us that had a chance to get to know him. Derek’s kindness is something we will forever cherish. We extend our condolences to his wide Adeline; his children, Heather (Scott MacKenzie) and David (Karina Jean); and his grandsons, Tristan, Toby, Thomas, Roman and Julien

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