Abstract
The synthesis of aromatic telechelic mono dispersed diols produced from the radical-initiated addition reaction of a twofold excess of 2-mercaptoethanol onto original alpha,omega nonconjugated dienes reaction is presented. These novel alpha,omega nonconjugated dienes were prepared by addition reaction of m-isopropyl alpha,alpha' dimethyl benzylisocyanate with mono dispersed telechelic diols obtained by fractionation of oligo(ethylene terephthalate)s. In these cases, the long chain alpha,omega diols were produced selectively and quantitatively. The products are soluble in most organic solvents in contrast to classical oligo (ethylene terephthlate) s and posses a lower glass transition and melting temperatures.