Direct fabrication of 3D silica-like microstructures from epoxy-functionalized polyhedral oligomeric silsesquioxane (POSS)

Moon, Jun Hyuk; Seo, Jin Seok; Xu, Yuheng; Yang, Shu

doi:10.1039/b901226e

Cited by 41 publications

(37 citation statements)

References 51 publications

(58 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…FTIR of compound 1 (Figure S4, SI) showed peaks as expected for the siloxane and hydrocarbon groups shown in the proposed structure and correspond well with stretches observed in similar silsesquioxane complexes reported in the literature2353641. Peaks at 2917 and 2848 cm −1 are due to CH stretches of the cyclohexyl substituent41.…”

supporting

confidence: 83%

“…29 Si NMR of ( c -C 6 H 11 ) 7 Si 7 (OH) 3 showed peaks at −60.36, −68.25 and −69.79 ppm in a ratio of 3:1:3, representing the 3 environments of Si in the incompletely condensed trisilanol (Figure S1, Supplementary Information, SI)31. FTIR of ( c -C 6 H 11 ) 7 Si 7 (OH) 3 (Figure S2, SI) additionally showed stretches representative of terminating hydroxyl groups (2800–3400 cm −1 ), Si-O-Si stretching and bending vibrations (1050–1195 cm −1 ) and Si-C stretches (between 1260 and 1450 cm −1 )4041. A europium precursor [(THF) 3 Li( μ -Cl)Eu[N(SiMe 3 ) 2 ] 3 ] (Fig.…”

mentioning

confidence: 98%

“…Peaks at 2917 and 2848 cm −1 are due to CH stretches of the cyclohexyl substituent41. Stretches in the fingerprint region (600–900 cm −1 ) are due to C-C bonds of cyclohexyl groups.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Rare Earth Doped Silica Nanoparticles via Thermolysis of a Single Source Metallasilsesquioxane Precursor

Davies

O’Brien

Gun’ko

2017

Sci Rep

View full text Add to dashboard Cite

Rare earth metal doped silica nanoparticles have significant advantages over traditional organic dyes and quantum dots. Silsesquioxanes are promising precursors in the production of silica nanoparticles by thermolysis, due to their structural similarities with silica materials. This manuscript describes the production of a new Eu3+-based metallasilsesquioxane species and its use as a single source precursor in the thermolytic production of luminescent rare earth metal doped silica nanoparticles with characteristic emission in the visible region of the spectrum.

show abstract

supporting

confidence: 83%

mentioning

confidence: 98%

See 1 more Smart Citation

Rare Earth Doped Silica Nanoparticles via Thermolysis of a Single Source Metallasilsesquioxane Precursor

Davies

O’Brien

Gun’ko

2017

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The band at 742 cm -1 is attributed to the stretching vibration in the Si-C(H 2 ) isobutyl groups of POSS [25,27] [23,25,29]. The broad band at 3420 cm -1 is attributed to the stretching mode of ν(OH) [30].…”

Section: Ftir Analysis Of Incorporation Of 12-propanediolisobutyl-pomentioning

confidence: 98%

Synthesis, morphology and thermal properties of the POSS-containing polyurethane nanocomposites

Karabanova¹,

Honcharova²,

Sapsay³

et al. 2016

Him. Fiz. Tehnol. Poverhni

View full text Add to dashboard Cite

show abstract

“…6 More recently, processible polymeric precursors have been developed for both of these ceramics that allow their syntheses in more complex forms, including films and fibers. Nevertheless, the construction of similar single-source precursors for boron-carbide/siliconcarbide composite materials that would allow both for the formation of processed forms and easy tunabilty of composition would be a chemically difficult and expensive challenge.…”

Section: Chemical Precursors To Complex Nonoxide Ceramic Compositesmentioning

confidence: 99%

Chemical Routes to Ceramics with Tunable Properties and Structures: Chemical Routes to Nano and Micro-Structured Ceramics

Sneddon¹,

Yang²

2009

Self Cite

View full text Add to dashboard Cite

Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and competing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden The goal of this completed AFOSR research program was to design, synthesize and develop the materials applications of new processible chemical precursors to technologically important nonoxide ceramics that allow the formation of these ceramics in forms that have been unattainable with conventional methods. Major achievements include demonstrations that: (1) blends of boron and silicon-based preceramic polymers can be used as excellent precursors to boron-carbide/silicon-carbide ceramic composite materials in processed forms with certain compositions showing significant oxidation resistance, (2) chemical precursor systems composed of zirconium or hafnium powders dispersed into blends of boron and silicon preceramic polymers provide simple efficient routes to new types of complex ultra high temperature ZrlWZrC/SiC and HfEWHfC/SiC composites, (3) blends of the Penn poly(norbornenyldecaborane) polymer with the commercial poly(methylcarbosilane) polymer could be electrostatically spun to produce polymer fibers that could then be thermally converted to nano-to micro-scale boron-carbide/silicon-carbide composite ceramic fibers, (4) silica-bead templating techniques employing preceramic polymers enable the generation of 2-dimensional nanoporous ceramic arrays, (5) diatom-templating methods provide excellent routes to micro-and nanostructured nonoxide ceramics, and (6) preceramic polymers can be used in conjunction with templates generated by multi-beam interference lithography to produce high temperature nonoxide ceramic photonic crystals.

show abstract

Direct fabrication of 3D silica-like microstructures from epoxy-functionalized polyhedral oligomeric silsesquioxane (POSS)

Abstract: We have fabricated 2D and 3D structured organosilcates from epoxy functionalized polyhedral oligomeric silsesquioxanes (POSS) cage materials using holographic lithography, which can be conveniently converted to silica structures by thermal removal of the organic moieties.

Cited by 41 publications

References 51 publications

Rare Earth Doped Silica Nanoparticles via Thermolysis of a Single Source Metallasilsesquioxane Precursor

Rare Earth Doped Silica Nanoparticles via Thermolysis of a Single Source Metallasilsesquioxane Precursor

Synthesis, morphology and thermal properties of the POSS-containing polyurethane nanocomposites

Chemical Routes to Ceramics with Tunable Properties and Structures: Chemical Routes to Nano and Micro-Structured Ceramics

Contact Info

Product

Resources

About