Mechanically robust aerogels derived from an amine-bridged silsesquioxane precursor
文献类型：期刊论文
| 作者 | Wang, Zhen1,2; Dai, Zhen1; Zhao, Ning1; Zhang, Xiaoli1; Dong, Haixia1; Xu, Jian1 |
| 刊名 | JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 75期号:3页码:519-529 |
| 关键词 | Aerogel Bridged silsesquioxane Hybrid Robustness Sol-gel process |
| 英文摘要 | A novel bridged silsesquioxane (BSQ) monomer was synthesized from 3-(2,3-epoxypropoxy)propyltrimethoxysilane and (3-aminopropyl) trimethoxysilane based on the reaction between epoxy and amine groups. The monomer was used to fabricate aerogels with excellent mechanical properties via sol-gel processes followed by supercritical CO2 drying. The influence of the sol-gel conditions on the chemical structure, morphology and mechanical property of the aerogels was investigated by NMR, TGA, SEM, nitrogen sorption analysis and DMA. BSQ aerogels prepared from the optimal sol-gel procedure showed excellent properties with high mechanical performance (compression modulus of 20.4 MPa) and low density (0.22 g cm(-3)), which are of great advantage for practical applications. Further, SiO2/BSQ composite aerogels with significantly improved mechanical performance than SiO2 aerogels can be obtained by co-condensing of BSQ monomer and tetraethoxysilane. The abundant hydroxyl groups in the BSQ precursor are believed to contribute to the robustness of BSQ and SiO2/BSQ composite aerogels due to the strengthened skeleton via the intermolecular H-bonds. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-10-27 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/27779]  |
| 专题 | 化学研究所_高分子物理与化学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Lab Polymer Phys & Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhen,Dai, Zhen,Zhao, Ning,et al. Mechanically robust aerogels derived from an amine-bridged silsesquioxane precursor[J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY,2015,75(3):519-529. |
| APA | Wang, Zhen,Dai, Zhen,Zhao, Ning,Zhang, Xiaoli,Dong, Haixia,&Xu, Jian.(2015).Mechanically robust aerogels derived from an amine-bridged silsesquioxane precursor.JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY,75(3),519-529. |
| MLA | Wang, Zhen,et al."Mechanically robust aerogels derived from an amine-bridged silsesquioxane precursor".JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY 75.3(2015):519-529. |
入库方式： OAI收割
来源：化学研究所
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