Related Experiment Video
Updated: Nov 15, 2025

Studying Large Amplitude Oscillatory Shear Response of Soft Materials
Published on: April 25, 2019
Shear and Extensional Rheology of Linear and Branched Polybutylene Succinate Blends
Violette Bourg1,2,3,4, Rudy Valette5, Nicolas Le Moigne1
1Polymers Composites and Hybrids (PCH)-IMT Mines Ales, 30100 Ales, France.
Abstract:
The molecular architecture and rheological behavior of linear and branched polybutylene succinate blends have been investigated using size-exclusion chromatography, small-amplitude oscillatory shear and extensional rheometry, in view of their processing using cast and blown extrusion. Dynamic viscoelastic properties indicate that a higher branched polybutylene succinate amount in the blend increases the relaxation time due to an increased long-chain branching degree. Branched polybutylene succinate exhibits pronounced strain hardening under uniaxial elongation, which is known to improve processability. Under extensional flow, the 50/50 wt % blend exhibits the same behavior as linear polybutylene succinate.
Related Concept Videos
Polymer Classification: Architecture
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
Elastic Strain Energy for Shearing Stresses
Shearing Strain
Flexural Stress
Hooke's Law states that within the material's elastic limits, stress is directly proportional to strain. In a member experiencing a bending moment, the strain at any point is relative to its distance...
Stress-Strain Diagram - Ductile Materials

