New multiblock terpoly(ester-ether-amide) thermoplastic elastomers

Abstract

A new block terpolymer of poly(tetramethylene terephthalate)‐block‐poly(oxytetramethylene)‐block‐polydodecanelactam with potential application as elastomers have been obtained by melt polycondensation of α,ω‐dihydroxypoly(butylene terephthalate), α,ω‐dihydroxypoly(oxytetramethylene) (Mn ≈ 1000) and α,ω‐dicarboxyoligo(dodecanelactam) (Mn ≈ 2000). The synthesis and some physical and chemical properties of this block poly(ester‐ether‐amide) thermoplastic elastomer is presented. A variety of different methods was used to study the phase structure, thermal and relaxational properties.