Skip to Main content Skip to Navigation
Journal articles

Tunable mechanical properties of [Fe(pyrazine){Au(CN)2}2]–PVDF composite films with spin transitions

Abstract : Here we describe the elaboration and investigation of composites prepared from the spincrossover (SCO) complex [Fe(pyrazine){Au(CN) 2 } 2 ] and poly(vinylidene fluoride) matrix, with different contents of the active phase (10-35 wt%). Optical measurements demonstrated that all composites preserve temperature induced hysteretic spin transitions. Tensile mechanical analysis showed a non-linear change of the Young's modulus upon increase of the complex content. Thermomechanical analysis upon a constant strain demonstrated pronouncable alterations of the applied stress in the SCO region. Composites with smaller loads require less stress to attain a given strain in the high-spin state, however for those with high loads the behaviour is more sofisticated. The modelling of stress vs. temperature behaviour revealed that this may be interpreted through a miscellaneous interplay of expansion of both the polymer and the complex, the contribution of both components to the elastic properties of composites, and the effects of SCO on these properties.
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-03474282
Contributor : Jose Elias Angulo-Cervera Connect in order to contact the contributor
Submitted on : Friday, December 10, 2021 - 10:30:38 AM
Last modification on : Thursday, January 6, 2022 - 10:51:36 AM

Files

Manuscript_22_11_2021.pdf
Files produced by the author(s)

Identifiers

Citation

Yurii Bibik, José Angulo-Cervera, Rostyslav Lampeka, Il'Ya Gural'Skiy. Tunable mechanical properties of [Fe(pyrazine){Au(CN)2}2]–PVDF composite films with spin transitions. Polymer, Elsevier, 2022, 238, pp.124410. ⟨10.1016/j.polymer.2021.124410⟩. ⟨hal-03474282⟩

Share

Metrics

Les métriques sont temporairement indisponibles