A simple preparation method of epoxy resin/silica nanocomposite for Tg loss materialElectronic supplementary information (ESI) available: infrared spectrum of silica directly obtained from TEOS and acetic anhydride in autoclave, SEM image of Sample 3-5, 1H NMR spectra of DGEBA-1, DGEBA-3, allyl-DGEBA-3, Si-DGEBA-3, hydridodimethylsilyloxy-POSS and POSS-DGEBA-3. See http://www.rsc.org/suppdata/jm/b3/b315474b/

Fujiwara, Masahiro; Kojima, Kaoru; Tanaka, Yūko; Nomura, Ryoji

doi:10.1039/b315474b

Cited by 42 publications

(6 citation statements)

References 52 publications

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“…Until recently, monofunctional silsesquioxanes (HSiMe 2 O)R 7 Si 8 O 12 (R= i Bu, c ‐C 5 H 9 , c ‐C 6 H 11 , OSiMe 3 ) have been reacted with N ‐allyl‐ N , N ‐(bis(trimethylsilyl)‐ and N ‐allyl‐ N ‐(triisopropylsilyl)amines, allyl alcohol, 4‐penten‐1‐ol, allyl methacrylate, 10‐undecenol, 1‐methoxy‐4‐allyloxyben‐zene, 1‐vinyl‐9‐fluorene, 1,2,3,6‐tetrahydrophthalic anhydride, diallyl bisphenol A . They have also been used for the modification of glycidyl ether‐bisphenol A resin and iridium‐containing light emitters . In all of these cases, the processes were catalyzed by Karstedt's catalyst (Pt 2 (dvs) 3 ) (10 −2 –10 −5 mol of Pt), toluene was used as a solvent, and the reactions were performed at different temperatures (from room to the reflux one), for 6–24 hours.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Monofunctionalized Silsesquioxanes (RSiMe₂O)(iBu)₇Si₈O₁₂via Alkene Hydrosilylation

Walczak

Franczyk

Marciniec

2017

Chemistry An Asian Journal

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The research presented in this work comprehensively describes hydrosilylation of a wide spectrum of alkenes which contain one or more reactive groups with (HSiMe O)(iBu) Si O , in the presence of different types of catalysts. Special attention is paid to the influence of alkene, catalyst, and reaction conditions on process effectiveness and selectivity by the precise monitoring of the experiments with in situ FTIR and NMR spectroscopies. More than twenty silsesquioxanes bearing reactive groups (OH, Br, NR , CO, COOR, NCO, epoxy, SiR ) commonly used in organic and polymer chemistry, were obtained, isolated and characterized by H, C, Si NMR and MALDI TOF. Importantly, in the presented syntheses, commercially available reagents and catalysts were used, meaning that the presented methods could be easily repeated, rapidly scaled up, and widely applied.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Monofunctionalized Silsesquioxanes (RSiMe₂O)(iBu)₇Si₈O₁₂via Alkene Hydrosilylation

Walczak

Franczyk

Marciniec

2017

Chemistry An Asian Journal

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“…The composite prepared with nano‐silica (ns12), a reduction of 23°C is seen. In earlier reports, the nano‐filler effect is mostly studied at lower loading levels where an increase in the T g value is recorded as a result of hampering of molecular movement due to high chemical interactions . But in this work, nano addition is made up to 12 wt%.…”

Section: Resultsmentioning

confidence: 94%

Effect of nano-modified SiO₂ /Al₂ O₃ mixed-matrix micro-composite fillers on thermal, mechanical, and tribological properties of epoxy polymers

Vaisakh

Mohammed

Hassanzadeh

et al. 2016

Polym. Adv. Technol.

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Thermo-mechanically durable industrial polymer nanocomposites have great demand as structural components. In this work, highly competent filler design is processed via nano-modified of micronic SiO 2 /Al 2 O 3 particulate ceramics and studied its influence on the rheology, glass transition temperature, composite microstructure, thermal conductivity, mechanical strength, micro hardness, and tribology properties. Composites were fabricated with different proportions of nano-modified micro-composite fillers in epoxy matrix at as much possible filler loadings. Results revealed that nano-modified SiO 2 /Al 2 O 3 micro-composite fillers enhanced inter-particle network and offer benefits like homogeneous microstructures and increased thermal conductivity. Epoxy composites attained thermal conductivity of 0.8 W/mK at 46% filler loading. Mechanical strength and bulk hardness were reached to higher values on the incorporation of nano-modified fillers. Tribology study revealed an increased specific wear rate and decreased friction coefficient in such fillers. The study is significant in a way that the design of nano-modified mixed-matrix micro-composite fillers are effective where a high loading is much easier, which is critical for achieving desired thermal and mechanical properties for any engineering applications.

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“…Latest researcher efforts have targeted the research direction on the ignition resistance of composites, the antioxidation properties of matrices [5][6] . According to the theory of polymer's pyrolysis, polymers in gas-oxygen (GOX) absorb oxygen firstly, behaving mass gain.…”

Section: Anti-oxidation Propertiesmentioning

confidence: 99%

“…Cyanate ester, a new type of highperformance resin， have shown potentials in aerospace structures and gain more and more attentions in recent years, which was reported to be compatible with LOX 4 . Inorganic nano-modification can improve the thermal, anti-oxidation properties of organic materials, is widely studied in recent years [5][6] . These performances contribute to improving the compatibility of the polymer liquid oxygen.…”

Section: Introductionmentioning

confidence: 99%

Compatibility and Anti-oxidation Properties of Study on Liquid Oxygen Compatibility with Nano-modified Epoxy Composites

Wang

Zhang

Liu

2011

Polymers and Polymer Composites

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Nano-sized silica particles were synthesized by sol-gel reaction. Epoxy resin/nano-silica composites were prepared by high-speed mixing after ultrasonic dispersion. By using electron microscopy and scanning electron microscope (SEM) techniques, the particle dispersion in the epoxy resin/nano-silica composites is studied. Anti-oxidation properties of the materials were investigated by thermogravimetric analysis (TGA) in the oxygen. The compatibility of the nano-composites with liquid oxygen was ranked according to the liquid oxygen sensitivity impact test results by the ASTM D2512 liquid oxygen (LOX) impact test. The results showed that the nano-modification method can significantly improve the liquid oxygen compatibility of epoxy composites.

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Cited by 42 publications

References 52 publications

Synthesis of Monofunctionalized Silsesquioxanes (RSiMe₂O)(iBu)₇Si₈O₁₂via Alkene Hydrosilylation

Synthesis of Monofunctionalized Silsesquioxanes (RSiMe₂O)(iBu)₇Si₈O₁₂via Alkene Hydrosilylation

Effect of nano-modified SiO₂ /Al₂ O₃ mixed-matrix micro-composite fillers on thermal, mechanical, and tribological properties of epoxy polymers

Compatibility and Anti-oxidation Properties of Study on Liquid Oxygen Compatibility with Nano-modified Epoxy Composites

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Cited by 42 publications

References 52 publications

Synthesis of Monofunctionalized Silsesquioxanes (RSiMe2O)(iBu)7Si8O12via Alkene Hydrosilylation

Synthesis of Monofunctionalized Silsesquioxanes (RSiMe2O)(iBu)7Si8O12via Alkene Hydrosilylation

Effect of nano-modified SiO2 /Al2 O3 mixed-matrix micro-composite fillers on thermal, mechanical, and tribological properties of epoxy polymers

Compatibility and Anti-oxidation Properties of Study on Liquid Oxygen Compatibility with Nano-modified Epoxy Composites

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Synthesis of Monofunctionalized Silsesquioxanes (RSiMe₂O)(iBu)₇Si₈O₁₂via Alkene Hydrosilylation

Synthesis of Monofunctionalized Silsesquioxanes (RSiMe₂O)(iBu)₇Si₈O₁₂via Alkene Hydrosilylation

Effect of nano-modified SiO₂ /Al₂ O₃ mixed-matrix micro-composite fillers on thermal, mechanical, and tribological properties of epoxy polymers