Preceramic polymer-grafted nanoparticles assembled via ionic complexation
High-temperature, structural ceramics are critical for demanding aerospace applications. Ceramic precursors or preceramic polymers (PCPs) may be utilized for ceramic production. Recent advances in chemistry provide an opportunity to improve PCP synthesis and design. Herein, we leverage ionic interac...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-06-01
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| Series: | Open Ceramics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666539523000214 |
| _version_ | 1797818278338363392 |
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| author | Nicholas D. Posey Jared H. Delcamp Matthew B. Dickerson |
| author_facet | Nicholas D. Posey Jared H. Delcamp Matthew B. Dickerson |
| author_sort | Nicholas D. Posey |
| collection | DOAJ |
| description | High-temperature, structural ceramics are critical for demanding aerospace applications. Ceramic precursors or preceramic polymers (PCPs) may be utilized for ceramic production. Recent advances in chemistry provide an opportunity to improve PCP synthesis and design. Herein, we leverage ionic interactions to create PCP grafted-nanoparticles, inspired by prior work on nanoscale ionic materials (NIMs). Linear and hyperbranched cationic polycarbosilanes were synthesized for NIMs assembly. PCP NIMs were created by assembling these cationic PCPs with silica nanoparticles that had been surface-modified with sulfonate groups. The resulting PCP NIMs were characterized with respect to morphology, rheology, thermal stability, thermal processing, and ceramic formation. Hybrid materials prepared with linear PCPs did not yield appreciable polymer-derived ceramic after firing, while those utilizing a modified, hyperbranched commercial PCP produced a SiC/SiO2 composite material. These results represent a compelling proof-of-principal study that establishes the feasibility of using a dynamic ionic bonding strategy to assemble PCP-based hybrid nanomaterials. |
| first_indexed | 2024-03-13T09:05:44Z |
| format | Article |
| id | doaj.art-59cf60287dfe466c8342bfc2a6a44109 |
| institution | Directory Open Access Journal |
| issn | 2666-5395 |
| language | English |
| last_indexed | 2024-03-13T09:05:44Z |
| publishDate | 2023-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Open Ceramics |
| spelling | doaj.art-59cf60287dfe466c8342bfc2a6a441092023-05-28T04:09:20ZengElsevierOpen Ceramics2666-53952023-06-0114100349Preceramic polymer-grafted nanoparticles assembled via ionic complexationNicholas D. Posey0Jared H. Delcamp1Matthew B. Dickerson2Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, OH, 45433, United States; UES, Inc., Dayton, OH, 45432, United StatesMaterials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, OH, 45433, United States; UES, Inc., Dayton, OH, 45432, United StatesMaterials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, OH, 45433, United States; Corresponding author.High-temperature, structural ceramics are critical for demanding aerospace applications. Ceramic precursors or preceramic polymers (PCPs) may be utilized for ceramic production. Recent advances in chemistry provide an opportunity to improve PCP synthesis and design. Herein, we leverage ionic interactions to create PCP grafted-nanoparticles, inspired by prior work on nanoscale ionic materials (NIMs). Linear and hyperbranched cationic polycarbosilanes were synthesized for NIMs assembly. PCP NIMs were created by assembling these cationic PCPs with silica nanoparticles that had been surface-modified with sulfonate groups. The resulting PCP NIMs were characterized with respect to morphology, rheology, thermal stability, thermal processing, and ceramic formation. Hybrid materials prepared with linear PCPs did not yield appreciable polymer-derived ceramic after firing, while those utilizing a modified, hyperbranched commercial PCP produced a SiC/SiO2 composite material. These results represent a compelling proof-of-principal study that establishes the feasibility of using a dynamic ionic bonding strategy to assemble PCP-based hybrid nanomaterials.http://www.sciencedirect.com/science/article/pii/S2666539523000214Nanoscale ionic materialsPreceramic polymersPolycarbosilanesPyrolysisPolymer-grafted nanoparticlesSilicon carbide |
| spellingShingle | Nicholas D. Posey Jared H. Delcamp Matthew B. Dickerson Preceramic polymer-grafted nanoparticles assembled via ionic complexation Open Ceramics Nanoscale ionic materials Preceramic polymers Polycarbosilanes Pyrolysis Polymer-grafted nanoparticles Silicon carbide |
| title | Preceramic polymer-grafted nanoparticles assembled via ionic complexation |
| title_full | Preceramic polymer-grafted nanoparticles assembled via ionic complexation |
| title_fullStr | Preceramic polymer-grafted nanoparticles assembled via ionic complexation |
| title_full_unstemmed | Preceramic polymer-grafted nanoparticles assembled via ionic complexation |
| title_short | Preceramic polymer-grafted nanoparticles assembled via ionic complexation |
| title_sort | preceramic polymer grafted nanoparticles assembled via ionic complexation |
| topic | Nanoscale ionic materials Preceramic polymers Polycarbosilanes Pyrolysis Polymer-grafted nanoparticles Silicon carbide |
| url | http://www.sciencedirect.com/science/article/pii/S2666539523000214 |
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