Lithium amide catalyzed anionic polyaddition of 1,4‐divinylbenzene with <i>N</i>,<i>N</i>′‐diethylethylenediamine

Abstract

Abstract Lithium amide catalyzed anionic polyaddition of N,N′ ‐diethylethylenediamine ( 6 ) to 1,4‐divinylbenzene ( 9 ) was carried out to obtain a new type of polyamine possessing a polymerizable vinyl group at the chain end, a so‐called “macromer”. Analyses of the reaction and of the resulting polyamine by means of 13 C NMR and GPC revealed that this polyaddition reaction is a typical equilibrium reaction which is not accompanied with any side reactions, except with a possible cyclization reaction. The equilibrium constants K and their temperature dependence were determined and compared with those of model reactions. The rate constants k 1 of the first step reaction and k 2 of the second step were also determined independently.