Quantitative Adjustment to the Molecular Energy Parameter in the Lake-Thomas Theory of Polymer Fracture Energy
Journal Article (Journal Article)
We present a conceptual framework for adding molecular details of chain extension and force-coupled bond dissociation to the Lake-Thomas model of tear energy in rubbery crack propagation. Incorporating data reported from single-molecule force spectroscopy experiments provides an estimate for the stored energy per bond at fracture of ∼60 kJ mol for typical hydrocarbon polymers, well below the typical carbon-carbon bond dissociation energy in these systems. Opportunities to test and exploit the role of molecular extension and covalent bond scission in experimental systems are proposed. -1
Full Text
Duke Authors
Cited Authors
- Wang, S; Panyukov, S; Rubinstein, M; Craig, SL
Published Date
- April 9, 2019
Published In
Volume / Issue
- 52 / 7
Start / End Page
- 2772 - 2777
Electronic International Standard Serial Number (EISSN)
- 1520-5835
International Standard Serial Number (ISSN)
- 0024-9297
Digital Object Identifier (DOI)
- 10.1021/acs.macromol.8b02341
Citation Source
- Scopus