Real-time monitoring of photoinduced atom transfer radical polymerization by time-resolved diffusion NMR
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0000-0003-4231-2929 Date
2026-02-18
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Abstract
Conventional real-time monitoring of polymerization is a laborious process that requires offline sampling and analysis. In this work, we introduce an advanced approach that combines Time-Resolved Diffusion NMR with 1H NMR for the simultaneous, in situ tracking of both monomer conversion and molecular weight evolution. We successfully applied this method to monitor the photoinduced atom transfer radical polymerization (photo-ATRP) in real-time. Furthermore, by coupling the gamma model with dispersity-matched accumulation, we accurately determined the dispersity values of the resulting polymers. To make the method more accessible, we developed a user-friendly program that sets up the acquisition and simplifies real-time monitoring of photo-ATRP. Additionally, the program allows stopping illumination at any desired monomer conversion, enabling easy control of the process.
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Polym. Chem., 2026, Advance Article. DOI https://doi.org/10.1039/D6PY00103C