Zhai, Qiang, Gao, Xin-Yuan, Lee, Chun-Shing, Ong, Chin-Yuan, Yan, Ke, Deng, Hai-Yao ![]() ![]() Item availability restricted. |
![]() |
PDF
- Accepted Post-Print Version
Restricted to Repository staff only until 9 May 2025 due to copyright restrictions. Download (2MB) |
Abstract
Confining glassy polymers into films can substantially modify their local and film-averaged properties. We present a lattice model of film geometry with void-mediated facilitation behaviors but free from any elasticity effect. We analyze the spatially varying viscosity to delineate the transport properties of glassy films. The film mobility measurements reported by Yang et al., Science, 2010, 328, 1676 are successfully reproduced. The flow exhibits a crossover from a simple viscous flow to a surface-dominated regime as the temperature decreases. The propagation of a highly mobile front induced by the free surface is visualized in real space. Our approach provides a microscopic treatment of the observed glassy phenomena.
Item Type: | Article |
---|---|
Date Type: | Publication |
Status: | Published |
Schools: | Physics and Astronomy |
Publisher: | Royal Society of Chemistry |
ISSN: | 1744-683X |
Date of First Compliant Deposit: | 17 June 2024 |
Date of Acceptance: | 3 May 2024 |
Last Modified: | 25 Jun 2024 08:42 |
URI: | https://orca.cardiff.ac.uk/id/eprint/169862 |
Actions (repository staff only)
![]() |
Edit Item |