In memoriam Acad. Prof. Dr Bogdan Simionescu (1948–2024)

The Romanian and international scientific community mourns the loss of Academician Bogdan C. Simionescu, a true exemplar of academic integrity, a visionary leader, an extraordinary educator, and a prolific researcher. He excelled in all these roles, leaving behind a remarkable legacy that continues to inspire.

Born on March 16, 1948, Professor Simionescu was the son of the renowned chemist Academician Cristofor Simionescu, whose professional path he carried forward with distinction. After graduating with honors from the Faculty of Industrial Chemistry at the Polytechnic Institute of Iasi in 1971, he began an illustrious academic and research career. He earned his doctorate in 1975 at the Catholic University of Leuven in Belgium under the supervision of Professor George J. Smets and returned to his native homeland, Romania. He joined the Faculty of Industrial Chemistry, rising through the academic ranks and becoming a full professor in 1992.

He brought important contributions to the field of polymer science over the course of more than five decades. Professor Simionescu explored a broad range of topics, contributing significantly to both fundamental understanding and applied research. His work encompassed diverse areas such as polymer chemistry, polymer physics, natural polymers, biopolymers, and smart materials. He published over 400 research papers, 350 of which appeared in international journals, along with numerous books/book chapters, patents, and over 300 invited lectures worldwide.

An inspiring mentor and dedicated teacher, Professor Simionescu held numerous academic positions throughout his career. He served as a professor of polymer science at the “Gheorghe Asachi” Technical University of Iasi, head of the Department of Macromolecular Chemistry (1996–2003), and visiting professor at prestigious universities worldwide, including Kyoto, Mulhouse, Montpellier, Angers, Rouen, Dunkerque, and Freiburg University. Professor Simionescu also served as Director of the “Petru Poni” Institute of Macromolecular Chemistry from 2000 to 2014, during which time he fostered significant collaborations with leading global researchers and institutions. Despite the challenges posed by limited resources in Romania, he successfully consolidated the “Petru Poni” Institute of Macromolecular Chemistry, turning it into a center of excellence in Romania and Eastern Europe. His ability to secure substantial European funding during his tenure highlighted his exceptional leadership skills and his determination to ensure that science and innovation thrived under even the most difficult circumstances. As a PhD supervisor at both the “Gheorghe Asachi” Technical University and the “Petru Poni” Institute of Macromolecular Chemistry, he guided over 45 doctoral candidates, shaping future generations of chemists.

In recognition of his achievements, he received numerous awards, including the “Nihil Sine Deo” Medal from the Royal House of Romania, the “Dimitrie Cantemir” Medal from the Academy of Sciences of Moldova, the “Costin Nenitzescu–Rudolf Criegee” prize, the Romanian Academy prize, and honorary doctorates from several Romanian universities. He was also decorated with the National Order “Steaua Romaniei”, Knight Rank, in 2015.

A devoted member of the Romanian Academy, Professor Simionescu was elected as a corresponding member in 2000 and as a full member in 2009. He served as Vice President of the Romanian Academy for two terms (2014–2022) and held key leadership roles, including President of the Iasi Branch and President of the Academy's Doctoral School. As Vice President of the Romanian Academy, he passionately advocated for both the humanities and applied sciences, emphasizing that science is the driving force of society. A man of immense erudition and insight, he promoted unity among researchers, the creation of interdisciplinary centers, and opportunities for young scientists. He worked tirelessly to ensure that doctoral students within the Romanian Academy had access to scholarships and research internships, emphasizing academic integrity and the pursuit of high-quality science. He was a man who built bridges within a divided academic and research community. A steadfast advocate for increasing research funding and ensuring its predictability, he passionately promoted the idea that society cannot progress without adequate investment in science.

Professor Simionescu understood that groundbreaking science requires both funding and passion. As a leader, he strived to create a supportive and motivating environment for researchers at the “Petru Poni” Institute of Macromolecular Chemistry. He was genuinely committed to their well being, often offering support with personal problems. By fostering such meaningful human connections, he built a sense of community that transcended the boundaries of scientific endeavor. His vision, leadership, and dedication have left an indelible mark on the scientific and academic landscape, ensuring his memory will continue to inspire future generations.

I would like to conclude by recalling Professor Simionescu's words when he was asked about role models in our society during an interview. To the surprise of many, his answer did not refer to a renowned researcher, an academician, or a great historical or political figure. Instead, he said, “A well-tended garden is the best example to follow”. This statement deeply reflects his worldview: modest, pragmatic, and marked by immense respect for order, beauty, and responsibility. Through these simple words, Professor Simionescu showed us that true role models need not always be found in grand achievements but in everyday gestures that create harmony and inspire others.

I hope many of us will follow his example, continuing to cultivate both science and the human values that were at the heart of his life and career.

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