Abstract
A superlayer test has been adapted for the measurement of the fracture energy between epoxy thin films and self-assembled monolayers (SAM’s) on Au/Ti/Si substrates. The “arrest” mode of analysis has been shown to provide consistent results, particularly when relatively wide lines are used to encourage lateral decohesions. The fracture energy, Γi, of the interface between the monolayer and the epoxy is varied by adjusting the ratio of COOH/CH3 terminal groups. Connections among Γi, the surface energies, and the inelastic deformations occurring in the epoxy are explored upon comparison with interface crack growth simulations.
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Zhuk, A.V., Evans, A.G., Hutchinson, J.W. et al. The adhesion energy between polymer thin films and self-assembled monolayers. Journal of Materials Research 13, 3555–3564 (1998). https://doi.org/10.1557/JMR.1998.0484
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DOI: https://doi.org/10.1557/JMR.1998.0484