On the Extensional Rheology of Polymer Melts and Concentrated Solutions

• Published in: Macromolecules Vol. 47; no. 1; pp. 379 - 386
• Main Authors: Sridhar, T, Acharya, Mohini, Nguyen, D. A, Bhattacharjee, P. K
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 14.01.2014
• Subjects: Applied sciences; deformation; Exact sciences and technology; friction; melting; Organic polymers; Physicochemistry of polymers; polystyrenes; prediction; Properties and characterization; rheological properties; rheology; Rheology and viscoelasticity; Solution and gel properties; Rheological model; Stress relaxation; Polymer solutions; Polymer melts; Theoretical study; Molecular entanglement; Elongational flow; Modeling; Concentrated solution

We examine the influence of the number of entanglements per chain (Z) on the uniaxial extensional rheology of polymer melts and concentrated solutions. We subject fluids with wide range of Z (13–51) to uniaxial extensional flow at strain rates that also spans a wide range: starting at strain rates t...