Skip to Main content Skip to Navigation
New interface
Theses

Mechanical and viscoelastic properties of glass-forming polymers in the bulk and thin films : molecular dynamics study of model systems

Abstract : Focusing on the equilibrium shear modulus Geq of well-known glass-forming polymer model system (sampled by means of MD), we have addressed the general question of how the mechanical properties of the thin polymer films differs from the bulk. Using ”stress fluctuation” formalism we obtained Geq(T) for the bulk and films. It has been demonstrated that in both cases Geq unambiguously separates the fluid state (Geq = 0) from the glass (Geq > 0). We also stressed that Geq for the film does not only depend on film thickness h, but also on tangential pressure that is a consequence of the film preparation procedure.
Document type :
Theses
Complete list of metadata

Cited literature [99 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-01820648
Contributor : ABES STAR :  Contact
Submitted on : Friday, June 22, 2018 - 4:19:40 AM
Last modification on : Sunday, October 30, 2022 - 3:50:28 AM
Long-term archiving on: : Tuesday, September 25, 2018 - 11:48:42 AM

File

Kriuchevskyi_Ivan_2017_ED182.p...
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-01820648, version 1

Collections

Citation

Ivan Kriuchevskyi. Mechanical and viscoelastic properties of glass-forming polymers in the bulk and thin films : molecular dynamics study of model systems. Physics [physics]. Université de Strasbourg, 2017. English. ⟨NNT : 2017STRAE044⟩. ⟨tel-01820648⟩

Share

Metrics

Record views

41

Files downloads

108