Ferrocenyl-containing silicone nanocomposites as materials for neuronal interfaces

Deriabin, Konstantin V.; Kirichenko, Sergey O.; Лопачев, А. В.; Sysoev, Yuriy I.; Musienko, Pavel; Islamova, Regina M.

doi:10.1016/j.compositesb.2022.109838

Cited by 12 publications

(21 citation statements)

References 29 publications

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“…PDMS is an organoelement insulating rubber with good flexibility, elasticity with low hysteresis (PDMS Sylgard 184 has an elongation at break c.a. 90% and irreversible deformation less than 1%), − and high specific electrical resistivity, − which can prevent EB.…”

Section: Resultsmentioning

confidence: 99%

Nickel(II)-Polysiloxane “Sandwiches” as Electrical Breakdown Protective Materials

Deriabin

Dziuba

Rashevskii

et al. 2022

ACS Appl. Polym. Mater.

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Self-healing materials are an essential emerging class of smart materials, capable of repairing their damage after external stimuli, especially mechanical damages. However, the lack of studies on self-healing polymers after electrical breakdown is highly important for electrical engineering and electronics. We propose to use a nickel(II)-2,6-pyridinedicarboxamide-co-polydimethylsiloxane complex (NiPyPDMS) as an electrical breakdown protective material. To provide the absence of dust deposition from ambient air and to increase durability, we fabricated multilayered polymer “sandwiches” consisting of a NiPyPDMS layer covered with two films (polypropylene (PP) or polydimethylsiloxane (PDMS)) on both sides. Multilayered PP-NiPyPDMS-PP and PDMS-NiPyPDMS-PDMS films exhibit autonomous self-healing properties (up to 75%) after electrical breakdown at room temperature. NiPyPDMS demonstrates 3.7 times higher adhesion to copper, from which power lines are made, compared to PDMS. NiPyPDMS also exhibits antistatic and redox properties (NiII/NiIII transformations when electricity is applied). All characteristics mentioned above lead to reduce the probability of electrical breakdown via electrical charge dissipation in self-healing coating on possible power lines.

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Section: Resultsmentioning

confidence: 99%

Nickel(II)-Polysiloxane “Sandwiches” as Electrical Breakdown Protective Materials

Deriabin

Dziuba

Rashevskii

et al. 2022

ACS Appl. Polym. Mater.

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“…21,23 Silyl ethers are often used in the total synthesis of natural products, 24 and also in enhancing the pharmacokinetic properties of drugs. 25 Si–O dehydrocoupling reactions can be utilized for functionalizing oligo- and polysiloxanes to obtain polymers with extended properties such as redox activity (ferrocene-functionalized siloxanes 9 for electronics, 10 optoelectronics, 26 and neurosurgery 11 ).…”

Section: Pt-pdms Catalytic Activity In Si–o Dehydrocoupling Reactionmentioning

confidence: 99%

“…6 Even the use of the widespread, commercially available and non-polar solvent-soluble Karstedt's catalyst can lead to yellowing of the products, for example, in the case of polysiloxane cross-linking by catalytic hydrosilylation and/or dehydrocoupling. [5][6][7]10,11 In this regard, the synthesis of a platinum polymer complex (as distinguished from the well-known low-molecular-weight complexes described above 4,5 ) for carrying out the reaction of heterogeneous catalysis is a challenging task. The reduction of the solubility of the polymer or macrocatalyst (without the loss of its catalytic activity) can overcome the problem of purification and regeneration of both the catalyst and products of the reaction.…”

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Platinum macrocatalyst for heterogeneous Si–O dehydrocoupling

et al. 2023

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“…“Black dots” and/or yellowing noticeably reduce the quality of silicone rubbers, making them opaque and inhomogeneous 6 . Moreover, during the silicone rubber fabrication and/or when various fillers are introduced into them to improve mechanical strength or impart special properties, it becomes necessary to carry out polysiloxane cross‐linking at temperatures above 100°C 23–27 . In this regard, study of thermally stable platinum catalysts for producing silicone materials seems to be a challenge.…”

Section: Introductionmentioning

confidence: 99%

High‐temperature platinum‐catalyzed hydrosilylation and dehydrocoupling cross‐linking of silicones

Filippova,

Deriabin,

Golovenko

et al. 2023

Applied Organom Chemis

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We propose to use the platinum(II) C,N‐cyclometalated complex (PCC) to catalyze the hydrosilylation and dehydrocoupling reactions of high molecular weight polysiloxanes at elevated temperatures (above 100°C). PCC was prepared via a three‐step procedure consisting of the 2‐hydrazinopyridine synthesis, its treatment with 3‐methoxy‐4‐(prop‐2‐yn‐1‐yloxy)benzaldehyde, and coupling of the obtained product with cis‐[PtCl2(CNXyl)2]. This complex exhibits thermal stability up to 150°C even at heating in air. PCC allows carrying out the cross‐linking of vinyl‐terminated polydimethylsiloxane (V‐PDMS) and polymethylhydrosiloxane (PMHS) by hydrosilylation, as well as PMHS dehydrocoupling cross‐linking at 150 and 120°C, respectively. The coupling (cross‐linking) patterns were successfully confirmed by 1H, 13C, and 29Si solid‐state NMR spectroscopy. The thermal and swelling characteristics and the transparency of the obtained silicone materials indicate the absence of aggregation of platinum particles.

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Ferrocenyl-containing silicone nanocomposites as materials for neuronal interfaces

Cited by 12 publications

References 29 publications

Nickel(II)-Polysiloxane “Sandwiches” as Electrical Breakdown Protective Materials

Nickel(II)-Polysiloxane “Sandwiches” as Electrical Breakdown Protective Materials

Platinum macrocatalyst for heterogeneous Si–O dehydrocoupling

High‐temperature platinum‐catalyzed hydrosilylation and dehydrocoupling cross‐linking of silicones

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