Silicon‐Containing Preceramic Polymers

Mera, Gabriela; Ionescu, Emanuel

doi:10.1002/0471440264.pst591

Cited by 14 publications

(21 citation statements)

References 178 publications

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“…Their key advantage over conventional (powder) synthesis procedures is represented by the possibility of adopting plastic-forming techniques (e.g., fiber spinning, foaming, warm pressing, extrusion, injection molding or resin transfer molding) to generate shaped components, later transformed into the desired ceramic parts (usually defined as polymer-derived ceramics or PDCs) by thermal treatment (pyrolysis) above ~800 °C, typically in a non-oxidative atmosphere (nitrogen or argon) [1–3]. …”

Section: Introductionmentioning

confidence: 99%

Advanced Ceramics from Preceramic Polymers Modified at the Nano-Scale: A Review

et al. 2014

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Preceramic polymers, i.e., polymers that are converted into ceramics upon heat treatment, have been successfully used for almost 40 years to give advanced ceramics, especially belonging to the ternary SiCO and SiCN systems or to the quaternary SiBCN system. One of their main advantages is the possibility of combining the shaping and synthesis of ceramics: components can be shaped at the precursor stage by conventional plastic-forming techniques, such as spinning, blowing, injection molding, warm pressing and resin transfer molding, and then converted into ceramics by treatments typically above 800 °C. The extension of the approach to a wider range of ceramic compositions and applications, both structural and thermo-structural (refractory components, thermal barrier coatings) or functional (bioactive ceramics, luminescent materials), mainly relies on modifications of the polymers at the nano-scale, i.e., on the introduction of nano-sized fillers and/or chemical additives, leading to nano-structured ceramic components upon thermal conversion. Fillers and additives may react with the main ceramic residue of the polymer, leading to ceramics of significant engineering interest (such as silicates and SiAlONs), or cause the formation of secondary phases, significantly affecting the functionalities of the polymer-derived matrix.

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Section: Introductionmentioning

confidence: 99%

Advanced Ceramics from Preceramic Polymers Modified at the Nano-Scale: A Review

et al. 2014

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“…The current research is moving forward to establishing novel preparative strategies to produce tailor-made silicon-based preceramic polymers [ 4 ] as precursors for polymer-derived ceramics (PDCs) [ 5 , 6 ]. Within this context, studies concerning the intimate relationships between their molecular architecture and the microstructure and properties of the ceramic materials resulting there from are of crucial importance [ 5 , 7 , 8 , 9 ] The thermolysis of Si-based preceramic polymers under specific atmosphere and heat treatment conditions represents a straight-forward and inexpensive additive-free process [ 5 , 10 ] which allows to control and adjust the phase composition and the microstructure and thus the materials properties of ceramic components.…”

Section: Preceramic Polymersmentioning

confidence: 99%

“… Typical classes of organosilicon polymers used as precursors for ceramics (reprinted with permission from Wiley) [ 4 ]. …”

Section: Preceramic Polymersmentioning

confidence: 99%

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Ceramic Nanocomposites from Tailor-Made Preceramic Polymers

et al. 2015

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The present Review addresses current developments related to polymer-derived ceramic nanocomposites (PDC-NCs). Different classes of preceramic polymers are briefly introduced and their conversion into ceramic materials with adjustable phase compositions and microstructures is presented. Emphasis is set on discussing the intimate relationship between the chemistry and structural architecture of the precursor and the structural features and properties of the resulting ceramic nanocomposites. Various structural and functional properties of silicon-containing ceramic nanocomposites as well as different preparative strategies to achieve nano-scaled PDC-NC-based ordered structures are highlighted, based on selected ceramic nanocomposite systems. Furthermore, prospective applications of the PDC-NCs such as high-temperature stable materials for thermal protection systems, membranes for hot gas separation purposes, materials for heterogeneous catalysis, nano-confinement materials for hydrogen storage applications as well as anode materials for secondary ion batteries are introduced and discussed in detail.

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“…As a feasible preparation route, different templating strategies have been applied for controlling shape and size of the final materials after removal of the template structure [10][11][12][13][14][15][16][17][18]. Current approaches are moving forward to establishing novel preparative strategies to produce for instance tailor-made silicon-based polymers [19] as suitable precursors for advanced ceramics [20]. Within this context, studies comprising the molecular polymer architecture and interaction with filler or template materials are of crucial importance [21,22].…”

Section: Introductionmentioning

confidence: 99%

POSS-Containing Polymethacrylates on Cellulose-Based Substrates: Immobilization and Ceramic Formation

et al. 2018

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The combination of cellulose-based materials and functional polymers is a promising approach for the preparation of porous, biotemplated ceramic materials. Within this study, cellulose substrates were functionalized with a surface-attached initiator followed by polymerization of (3methacryloxypropyl)heptaisobutyl-T8-silsesquioxane (MAPOSS) by means of surface-initiated atom transfer radical polymerization (ATRP). Successful functionalization was proven by infrared (IR) spectroscopy as well as by contact angle (CA) measurements. Thermal analysis of the polymer-modified cellulose substrates in different atmospheres (nitrogen and air) up to 600 °C led to porous carbon materials featuring the pristine fibre-like structure of the cellulose material as shown by scanning electron microscopy (SEM). Interestingly, spherical, silicon-containing domains were present at the surface of the cellulose-templated carbon fibres after further ceramisation at 1600 °C, as investigated by energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD) measurements.

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Silicon‐Containing Preceramic Polymers

Cited by 14 publications

References 178 publications

Advanced Ceramics from Preceramic Polymers Modified at the Nano-Scale: A Review

Advanced Ceramics from Preceramic Polymers Modified at the Nano-Scale: A Review

Ceramic Nanocomposites from Tailor-Made Preceramic Polymers

POSS-Containing Polymethacrylates on Cellulose-Based Substrates: Immobilization and Ceramic Formation

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