Is the SER sensitive/reproducible enough to distinguish between good and bad polymer samples for quality control purposes?
A. As described on our Principle of Operation page, uniaxial extensional is the “strongest” flow field one can generate. Because of the high level of reproducibility and the degree of molecular orientation and chain stretch that can be achieved with the SER, extensional rheology measurements with the SER are ideally suited for distinguishing subtle differences in molecular architecture, examples of which are provided on our Extensional Rheology mode of operation page.