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Keywords = ferrocenyl-containing silicone materials

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2 pages, 152 KB  
Abstract
Chameleon-like Self-Healing Flexible Materials Based on Ferrocenyl-Containing Polysiloxanes
by Anastasia N. Kocheva, Konstantin V. Deriabin and Regina M. Islamova
Proceedings 2024, 107(1), 3; https://doi.org/10.3390/proceedings2024107003 - 15 May 2024
Viewed by 674
Abstract
Animals such as chameleons change their skin colour in case of potential threat and recover damaged tissues [...] Full article
(This article belongs to the Proceedings of The 1st International Online Conference on Biomimetics)
16 pages, 1435 KB  
Article
Self-Healing Redox-Active Coatings Based on Ferrocenyl-Containing Polysiloxanes
by Artem A. Rashevskii, Konstantin V. Deriabin, Elizaveta K. Parshina and Regina M. Islamova
Coatings 2023, 13(7), 1282; https://doi.org/10.3390/coatings13071282 - 21 Jul 2023
Cited by 14 | Viewed by 2350
Abstract
The known ferrocenyl-containing silicone materials have redox activity and electrical conductivity at the level of antistatic materials, but they are incapable of self-healing due to their irreversible cross-linking, which significantly reduces their application area. The development of novel self-healing ferrocenyl-containing silicone rubbers (FSRs) [...] Read more.
The known ferrocenyl-containing silicone materials have redox activity and electrical conductivity at the level of antistatic materials, but they are incapable of self-healing due to their irreversible cross-linking, which significantly reduces their application area. The development of novel self-healing ferrocenyl-containing silicone rubbers (FSRs) is a promising area of research that extends the possibilities of their application as protective coatings. In this work, a new method was developed to synthesize FSRs with different ferrocenyl unit content (25 and 50 mol.%) by anionic copolymerization of cyclic octamethylcyclotetrasiloxane (D4), cyclic tetraferrocenyl-substituted 1,3,5,7-tetramethyltetrasiloxane (Fc4D4), and bicyclic cross-linking agent (bis-D4). The optimal concentrations of the cross-linking agent and ferrocenyl-substituted unit content for FSRs are 5 wt.% and 25 mol.%, respectively. The FSRs exhibit tensile strength and elongation at break up to 0.1 MPa and 215%. The FSRs possess both self-healing at room and/or elevated temperatures (100 °C) and redox activity (Fc/Fc+ transformations at E0 = 0.43 V) and conductivity at the antistatic level (ca. 10−10–10−11 S·cm−1). The thermal properties of the FSRs were studied. The proposed approach is relevant for the creation of new functional silicone materials as flexible, self-healing, and antistatic protective coatings. Full article
(This article belongs to the Special Issue Functionalities of Polymer-Based Nanocomposite Films and Coatings)
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