Synthesis of ferrocenyl‐containing silicone rubbers via platinum‐catalyzed<scp>Si–H</scp>self‐cross‐linking

Deriabin, Konstantin V.; Lobanovskaia, E.K.; Kirichenko, Sergey O.; Barshutina, M. N.; Musienko, Pavel; Islamova, Regina M.

doi:10.1002/aoc.5300

Cited by 20 publications

(31 citation statements)

References 56 publications

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“…To summarize, the current work has revealed the key role of the design of ligands and PMCs in terms of the broad variation of mechanical and SH properties and provides a route to produce a variety of cobalt-incorporated SH materials exhibiting useful elastic properties. The obtained cobalt(II)-incorporating polysiloxanes, particularly Co-Bipy-PDMSs, are promising polymers for the fabrication of highly elastic SH membranes, e.g., for optoelectronic devices, , and as coatings for electrokinetic separations and electrostatic discharge materials. , …”

Section: Discussionmentioning

confidence: 99%

Structural Features of Polymer Ligand Environments Dramatically Affect the Mechanical and Room-Temperature Self-Healing Properties of Cobalt(II)-Incorporating Polysiloxanes

et al. 2021

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Cobalt(II)-pyridinedicarboxamide-co-polydimethylsiloxane (Co-Py-PDMSs) and cobalt(II)-bipyridinedicarboxamide-co-polydimethylsiloxane (Co-Bipy-PDMSs) polymer−metal complexes were prepared by complexation between Py-PDMSs or Bipy-PDMSs ligands and cobalt(II); the metal content in these complexes varied from 0.09 to 2.41 wt %. The Co II binding patterns (the Co−N Py and Co−O coordination in Co-Py-PDMSs and Co−N Bipy in Co-Bipy-PDMSs) were established by UV−vis and IR methods and by comparison with model Co II complexes exhibiting relevant O,N,O-and N,N-coordination environments, respectively. The mechanical properties of the polymer−metal complexes were controlled by the coordination of Py-PDMSs or Bipy-PDMSs to Co II at various metal-toligand molar ratios (1:(1−6)) and by the variation of the polydimethylsiloxane unit length (M n : 850−900, 5000, or 25 000 g•mol −1 ). Utilization of the chelated Py-PDMSs and Bipy-PDMSs polymer ligands, which are capable of tri-or bidentate binding of Co II , led to (2−4)-fold increases in tensile strength (up to 1.75 MPa) and much higher elongation at break ((2−3)-fold increase up to 2100%) compared with the previously reported Co II -based polymer− ligand systems featuring monodentate ligation entities. Changing the main-chain ligand from Py-PDMSs to Bipy-PDMSs led to an increase in tensile strength of (2−4)-fold in comparison with Py-PDMS and a lower hysteresis (4%). The room temperature selfhealing efficiency was up to 96% for Co-Py-PDMSs and 40% for Co-Bipy-PDMSs, as measured for a polydimethylsiloxane unit with M n = 25 000 g•mol −1 .

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Section: Discussionmentioning

confidence: 99%

Structural Features of Polymer Ligand Environments Dramatically Affect the Mechanical and Room-Temperature Self-Healing Properties of Cobalt(II)-Incorporating Polysiloxanes

et al. 2021

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“…The FPS was synthesized by the reaction of catalytic hydrosilylation between PMHS and vinylferrocene according to procedure published in 25 (Scheme 2). The obtained FPS was dissolved in 2 mL dichloromethane (DCM) and applied by drop-casting onto the face surface of the PDMS-St/NW membrane before the release from the Si wafer.…”

Section: Fps Synthesis and Cross-linkingmentioning

confidence: 99%

“…The FPS gel requires evaporation of DCM to achieve proper self-crosslinking by the reaction between Si-H groups (Scheme 2). 25,44 After DCM evaporation inside a ventilated chemical hood, the samples (iii) were put into an oven for a homogeneous crosslinking of the whole volume of the FPS. The fabricated crosslinked FPS contact also serves as a good mechanical support, facilitating the PDMS-St/NW membrane release from the Si wafer.…”

Section: Fps Synthesis and Cross-linkingmentioning

confidence: 99%

“…This contact can be further improved with diluted multi wall CNTs (MWCNTs), having high in-plane conductivity. The development of curable silicone (co)polymers with electroactive fragments in their structure is highly perspective for electrostatic discharge (ESD) protective materials for electrostatic-sensitive devices and power lines, 25,26 active layers for modern sensing electronic devices [27][28][29] and biomedical implants. 30,31 Thus, the integration of metals into a polysiloxane chain can directly influence its electronic and optical properties.…”

Section: Introductionmentioning

confidence: 99%

“…30,31 Thus, the integration of metals into a polysiloxane chain can directly influence its electronic and optical properties. 25,32,33 For instance, self-curable polysiloxanes with redox-active ferrocenyl moieties were synthesized. 25 They are attractive materials primarily due to the possibility of self-cross-linking, the application as a liquid contact (which is mechanically reliable and easy for use), high compatibility with PDMS substrate, as well as the ability to combine ferrocenyl-containing silicone rubbers with other materials, such as multi-walled carbon nanotubes, in order to achieve high lateral conductivity.…”

Section: Introductionmentioning

confidence: 99%

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Modified silicone rubber for fabrication and contacting of flexible suspended membranes of n-/p-GaP nanowires with a single-walled carbon nanotube transparent contact

et al. 2020

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+7 9117294724 1. AbstractThis work proposes new chemical and mechanical materials and techniques for III-V semiconductor NW/silicone membrane formation and optoelectronic device fabrication. Molecular beam epitaxy (MBE)-synthesized n-, p-and i-GaP NWs were encapsulated by introduced G-coating method into synthesized polydimethylsiloxane-graft-polystyrene and released from the Si growth substrate. The fabricated membranes were contacted with different materials including single-walled carbon nanotubes or ferrocenyl-containing polymethylhydrosiloxane with and without multi-walled carbon nanotubes doping. The electrical connection of the fabricated membranes was verified by electron beam induced current (EBIC) spectroscopy. The developed methods and materials can be applied for fabrication of high quality flexible inorganic optoelectronic devices. IntroductionThe appealing properties of organic light emitting diodes (OLEDs), i. e. relatively easy and inexpensive fabrication, and efficient electroluminescence (EL) allowed the OLED-based industry to conquer a significant market share. For instance, modern smartphones are mostly produced with the OLED displays [weblink1, weblink2]. However, organic materials are far behind the inorganic materials in terms of stability and external quantum efficiency (EQE) of EL

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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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Synthesis of ferrocenyl‐containing silicone rubbers via platinum‐catalyzedSi–Hself‐cross‐linking

Cited by 20 publications

References 56 publications

Structural Features of Polymer Ligand Environments Dramatically Affect the Mechanical and Room-Temperature Self-Healing Properties of Cobalt(II)-Incorporating Polysiloxanes

Structural Features of Polymer Ligand Environments Dramatically Affect the Mechanical and Room-Temperature Self-Healing Properties of Cobalt(II)-Incorporating Polysiloxanes

Modified silicone rubber for fabrication and contacting of flexible suspended membranes of n-/p-GaP nanowires with a single-walled carbon nanotube transparent contact

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

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