Yue, Liang; Amirkhosravi, Mehrad; Ke, Kai; Gray, Thomas G.; Manas-Zloczower, Ica published their research in ACS Applied Materials & Interfaces in 2021. The article was titled 《Cellulose Nanocrystals: Accelerator and Reinforcing Filler for Epoxy Vitrimerization》.Name: 1-Methyl-1H-imidazole The article contains the following contents:
The novel vitrimerization concept of converting permanently crosslinked networks of thermoset polymers into dynamic exchangeable networks often relies on transesterification reactions. Transesterification exchange reactions, for example, in epoxy vitrimers, are usually contingent on equivalent ratios of hydroxyl to ester groups and large amounts of catalysts to achieve proper dynamic exchange capability. In general, postconsumer epoxy cured with anhydrides contains very few hydroxyl groups in the network, and it is challenging to convert it into efficient dynamic networks by vitrimerization. Here, we demonstrate that introducing cellulose nanocrystals as feedstock of external hydroxyl groups in the mechanochem. vitrimerization process could improve the exchange reaction rate as well as the thermomech. properties of the vitrimerized epoxy. This work offers an effective way to recycle and reprocess postconsumer epoxy/anhydride waste with inherent low ratios of hydroxyl to ester groups into higher value-added vitrimer nanocomposites.1-Methyl-1H-imidazole(cas: 616-47-7Name: 1-Methyl-1H-imidazole) was used in this study.
1-Methyl-1H-imidazole(cas: 616-47-7) is actively involved in removing acid during the production of diethoxyphenylphosphine. It is used as an intermediate in organic synthesis.Name: 1-Methyl-1H-imidazole
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem