For the past 60 years after the pioneering work on the anionic polymerization of isocyanates by Shashoua, polyisocyanates as a class of rodlike helical polymers have made a substantial impact on multidisciplinary chemistry. The essential key to success has been to completely protect the amidate anions from undesired side reactions, including cyclotrimerization and termination. For the last 27 years, we have been working on this research topic. Our group has invented advanced protocols for living anionic polymerization of isocyanates, and we published numerous articles in the journals of high repute. Despite the early hardships regarding the extension of this work due to lack of funds as this work is not industrially oriented, we solitarily were able to strengthen this field. Among numerous papers until now on isocyanates, the first paper was published in ‘Macromolecules’ on the study on polymerization of isocyanate using crown ether in 1999 and the recently published (36th) in 2019.