Related Experiment Video
Updated: Jan 12, 2026

Synthesis of Programmable Main-chain Liquid-crystalline Elastomers Using a Two-stage Thiol-acrylate Reaction
Published on: January 19, 2016
Elasticity and Dynamics of Elastomeric Epoxy Networks: Comparing Simulations and Experiments at High Frequency
Iakovos Delasoudas1, Spyros V Kallivokas2, Emmanouela Filippidi3,4
1Dept. of Mechanical Engineering and Aeronautics, University of Patras, Patras, 26500, Greece.
None:
This study investigates the elastic and dynamic properties of elastomeric, stoichiometric epoxy networks formed between the telechelic functionalized poly(ethylene glycol) diglycidyl ether (PEGDE) and the linear cross-linker 1,4-diaminobutane across a range of extensional strain rates (107 to 1010 s-1), molar masses (n = 3, 5, 8 repeat units), and two reaction extents determining degree of cross-linking through atomistic simulations and compares them with the experimental n = 8 system. Investigated properties are Young's and shear moduli, the C11 elastic constant, the glass transition temperature, and the network's mean-squared-displacement. Results reveal a notable agreement between simulation-obtained and experimental values of C11 and its experimentally determined Brillouin light scattering (BLS) value and glass transition temperatures, bridging the gap between atomistic and macroscopic length scales. This work contributes to the renewed interest of BLS applied on soft systems and lays the groundwork for computational investigations of complex epoxy architectures, such as dual networks with epoxy covalent and noncovalent bonds.
Related Concept Videos
Dynamic Modulus of Elasticity of Concrete
The sonic test is a common method to determine the dynamic modulus. In this test, a concrete beam, sized either 6 x 6 x 30 inches or 4 x 4 x 20 inches, is clamped at its center. Vibrations are initiated at one end of the beam by an electromagnetic exciter unit powered by a...
Elasticity in Concrete
Relation between Poisson's ratio, Modulus of Elasticity and Modulus of Rigidity
Members Made of Elastoplastic Material
As the bending moment...
Strain and Elastic Modulus
Elastic Strain Energy for Shearing Stresses

