With DOT and thCL as thionolactone comonomers, next to CKAs, the range of intrinsically recyclable vinyl-based polymers can be seen as quite large at first sight. However, it is nontrivial to achieve flexibility and precision control with methacrylates such as methyl methacrylate (MMA). For example, Roth et al. [1,4]dioxepine-5-thione (DBT) as a thionolactone compatible with MMA but the methacrylate was depleted first, leading to a much slower DBT insertion as expected based on the feed composition, inducing undesired intramolecular heterogeneity. Moreover such thionolactone is incompatible with acrylate derivatives. Guillaneuf et al. recently showed that density functional theory (DFT) calculations could facilitate the in-silico design of new (co)monomer structures but likely significant research time and even unrealistic synthesis effort is needed to prepare them. Notably, during the writing of this manuscript, Johnson and coworkers 39 also applied a DFT approach to design a DOT derivative F-p-CF3-PhDOT that was shown to copolymerize efficiently with MMA. Nevertheless, the preparation of this compound requires a less trivial 5 step-synthesis with an overall yield of only 13 %.