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Dynamic bonds offer a powerful molecular handle for controlling the properties and functions of polymeric materials. Unlike permanent covalent linkages, dynamic bonds can exchange in response to their local chemical and physical environment, allowing molecular-scale processes to influence material behaviour across multiple length and time scales. A key motivation for incorporating dynamic bonds into polymers is to enable improved processability and recyclability. However, depending on the nature of the dynamic interaction—ranging from dynamic covalent bonds to supramolecular interactions—the underlying dynamics and resulting material properties can vary dramatically. Understanding these relationships creates opportunities for property driven molecular design, where the chemistry of the dynamic moiety is tailored to achieve a desired macroscopic response. Beyond processability and recyclability, dynamic bonds can also impart diverse functional and adaptive properties to polymeric materials. In this talk, I will discuss how subtle changes in the molecular structure and environment of dynamic moieties can translate into significant differences in macroscopic material properties. Through examples spanning dynamic covalent and ionic polymeric materials, I will illustrate how changes in the nature and dynamics of molecular interactions can reshape bulk material behaviour. Finally, I will discuss how precise molecular design can introduce new functionality into dynamic polymers, exemplified by our incorporation of a catchbond effect into polymeric materials, where dynamic bonds become more persistent under mechanical force. Bio: I am a polymer chemist, and my research interests primarily lie in designing new polymers to replace the present-day commodity plastics with sustainable alternatives. Within this framework, I am interested in introducing adaptive functionalities into polymers seeking inspiration from biological systems. After completing my chemistry bachelor studies, from Presidency University, Kolkata, I moved to Indian Institute of Technology Kharagpur, India, for my master’s education in chemistry. There, as a part of my graduation project, I worked in the Functional Materials and Electrochemistry Lab, under the supervision of Prof. C.R. Raj. The research focused on combining conducting polymers and mixed transition metal oxides to design flexible supercapacitor devices. I received his master’s degree in 2018. In the same year, I started my Ph.D. research in the Supramolecular Polymer Chemistry group at Eindhoven University of Technology under the supervision of Prof. Rint Sijbesma and Dr. Hans Heuts. My research in Eindhoven focused on dynamic covalent polymer networks and I introduced the use of phosphate esters as a dynamic motif in such materials. After my PhD I moved to Wageningen University and Research for a postdoctoral research period of 2.5 years during which I worked with Dr Thomas Kodger and Prof. Jasper van der Gucht to design a range of molecular ionic glasses that could potentially serve as sustainable alternatives to polymer glasses. I am currently a postdoctoral researcher in the Lerch Lab, at University of Groningen. My research in Groningen is focused on two areas: mechanotransduction in soft matter for force mediated actuation in soft robotics and responsive coating designs for active delamination leading to efficient material recycling.
📍 LGRT 201