Melt rheological behavior of a triblock copolymer based on aramide end-segments.

The article presents a study on the melt rheological characteristics of a triblock polymer made of poly(tetramethylene oxide) (PTMO) soft segment and aramide hard segment. In the study, a capillary Ubbelohde OC was used to identify the inherent viscosity of the polymers mixed with phenol-1,1,2,2-tetrachloroethane. The parallel-plate and capillary flow technique were used to calculate the activation energy of the polymer.