Prof. Charles Eliezer Diesendruck
Meidan Auditorium for Green Pass Holders (and policy-willing) and by Zoom
There are numerous important parameters that need to be considered to predict the results of mechanical force applied to polymer chains in solution and in bulk. These can be mild, leading to elastic deformations or unfolding but in many cases, they reach the extreme situation in which chains undergo covalent scission, known as polymer mechanochemistry, which leads to loss of mechanical and other properties. Understanding how polymers are affected by mechanical stress is central for developing robust functional materials with extended lifetimes. In addition, polymer mechanochemistry plays key roles in processes that are becoming vital, such as plastic recycling. In recent years, our group has focused on understanding how chain folding affects the process leading to polymer mechanochemistry, inspired by the fact that natural polymers are typically folded. In this talk, I’ll describe different strategies to generate adequate polymer models having ordered or random folding, and what can be learned on the mechanochemical process and response from these model polymer chains.