While this polymerization technique did not typically gain fame and popularity until 2010, it was also reported by Aso and Tagami in 1969. In general, LAP involves the usage of a strong nucleophile to initiate polymerization in addition to the employment of an electrophile as a terminator to endcap the polymer chain. In Tagamis article, PPA was prepared by utilizing tert'-butyllithium as an initiator and acetic anhydride as a terminator. However, the drawbacks faced when utilizing LCP (low polydispersity index (PDI), low yield, and no control over molecular weight) were also encountered in this polymerization technique.