The ligands role in normal atom transfer radical polymerization (ATRP) is not only for controlling the system but also regulate the rate of polymerization depending the solubility in the reaction media. Solubility of the catalyst/ligand complexes in organic media is of particular importance to attain homogeneous polymerization conditions.

Prof. Dr. Metin H. Acar and his group members published the article titled “Revisiting to N-alkylation of multi-dentate amines ligand for ATRP” in J. Appl. Polym. Sci., June 2023. Alkylated Linear Amine Ligands synthesized here provide homogeneous (soluble) reaction environment in ATRP system, while reaction have been shown heterogeneous with methyl substituent analogue. A linear decreasing trend in the apparent rate constants of polymerizations was observed with increasing alkyl chain length.