Block copolymers are prepared from polymerization of a macrocyclic oligoester and a dihydroxyl-functionalized polymer at an elevated temperature in the presence of a polymerization catalyst.

Сополимеры блока подготовлены от полимерности macrocyclic oligoester и а dihydroxyl-functionalized полимер на повышенной температуре in the presence of катализатор полимерности.