Abstract: The polyamide-poly-Ⅲ-caprolactone multiblock copolymers consisting of nylon 1010 as hard segments and poly-Ⅲ-caprolactone as soft segments were synthesized from ω,ω'-dicarboxylic nylon 1010 oligomers with ω,ω'-dihydroxy poly-e-caprolactone oligomers in the presence of catalyst by melt polycondensation. These block copolymers were characterized by molecular weight determination,¹HNMR and DSC methods. The kinetics of polycondensation of ω,ω'-dicarboxylic nylon 1010 oligomers and ω, ω' -dihydroxy poly-Ⅲ-caprolaetone oligomers has been studied at various temperatures. The experiments showed that the reaction is. of 2nd order, the activation energy ΔE = 58.2 kcal/mol and the reaction kinetic constant K =1.36×l0^{22·e-2.93×104/T}.

Key words: Nylon 1010, Poly-ε-caprolactone, Melt polycondensation