Related Experiment Video
Updated: Jul 3, 2026

Studying Large Amplitude Oscillatory Shear Response of Soft Materials
Published on: April 25, 2019
Shear-induced effects in hyperbranched-linear polyelectrolyte complexes
G K Dalakoglou1, K Karatasos, S V Lyulin
1Physical Chemistry Laboratory, Chemical Engineering Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
Abstract:
Static and dynamic properties of complexes formed by hyperbranched polymers with linear polyelectrolytes are studied under the influence of steady shear flow by means of Brownian dynamics simulations. Models of peripherally charged hyperbranched molecules bearing two extreme topological structures and different molecular weights complexed with linear neutralizing chains are subjected to a range of shear rates starting from a low-shear regime toward the complex-breaking point. Examination of the stability limit, shape and mass distribution parameters, and dynamics in different lengths and timescales is performed as a function of the applied shear. The results described illustrate features of the generic behavior that should be expected from such systems under conditions of steady shear flow.
Related Concept Videos
Polymer Classification: Architecture
Radical Chain-Growth Polymerization: Chain Branching
Shearing Strain
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
Generalized Hooke's Law
Elastic Strain Energy for Shearing Stresses

