Rheological behavior of polymeric liquids has been considered to be universally determined
by a few time-independent molecular parameters (such as the Rouse relaxation time and …

We review constitutive modeling of solutions and melts of linear polymers, focusing on
changes in rheological behavior in shear and extensional flow as the concentration …

The advances in understanding the dynamics of both the physically and chemically
reversible networks are summarized from a rheological perspective. The focus is placed on …

Jets, ie collimated streams of matter, occur from the microscale up to the large-scale
structure of the universe. Our focus will be mostly on surface tension effects, which result …

We provide a Perspective on recent findings in extensional rheology for polymer melts and
solutions with different macromolecular architectures. For linear polymer systems, we focus …

We compare viscoelastic properties of several polystyrene solutions and melts with the
same number of entanglements. It is demonstrated that the modulus and time can be shifted …

We use a new extensional rheology test fixture that has been developed for conventional
torsional rheometers to measure the transient extensional stress growth in a number of …

In the melt state at equilibrium, entangled nonconcatenated ring macromolecules adapt
more compact conformations compared to their linear analogs and do not form an …

A filament-stretching rheometer is used to measure the extensional viscosity of a shear-
thickening suspension of cornstarch in water. The experiments are performed at a …

Well-entangled monodisperse linear polystyrene melts exhibit monotonic thinning of the
steady state elongational viscosity with increasing the strain rate ε̇ even beyond the Rouse …