Synthesis of polyoxyethylene block copolymers and their aggregation in water

The possibility of thermal degradation of polyoxyethylene in the course of high-temperature polycondensation was examined. Conditions were suggested for the low-temperature synthesis of ABA block copolymers whose molecules contain a polyoxyethylene central block and p-aromatic ester terminal blocks. The aggregation of the block copolymers in water was studied by dynamic light scattering and electron microscopy.