文献类型：期刊文献

英文题名：Synthesis and characterization of highly oxidative resistant silicon-acetylene hybrid resin grafted with modified mesoporous silica

作者：Geng, Jie[1];Zhou, Quan[1];Ge, Juan[1];Bai, Bo[1];Ni, Lizhong[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai, Peoples R China

年份：2018

卷号：30

期号：3

起止页码：283

外文期刊名：HIGH PERFORMANCE POLYMERS

收录：;EI(收录号：20181004853163);WOS:【SCI-EXPANDED(收录号:WOS:000429810900004)】；

基金：The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was supported by the National Natural Science Foundation (51573044) and the Shanghai Natural Science Foundation of China (15ZR1409800).

语种：英文

外文关键词：Silicon-acetylene resin; oxidative resistance; mesoporous silica; grafted

摘要：This study focused on the preparation and characterization of silicon-acetylene resin by means of grafting functionalized mesoporous silica. (3-Aminopropyl) triethoxysilane was grafted to silica surface through the hydrolysis reaction to yield mesoporous silica functionalized with (3-Aminopropyl) triethoxysilane (MA). These MA nanoparticles were transferred to the chain of silicon-acetylene resin, poly(m-dietheynylbenzene-methylsilane) (PSA) to yield PSA-g-MA, with the help of the reaction of hydrochloric acid removal. PSA-g-MA was totally characterized by Fourier transform infrared spectroscopy, energy dispersive spectroscopy, differential scanning calorimetry, thermogravimetric analysis, scanning electron microscope, transmission electron microscope, and nuclear magnetic resonance, which certified the success of silica modification and functionalized nanoparticles grafted to chain of PSA. The char content of PSA-g-MA reached to 45% at 1000 degrees C under air atmosphere, and the residual weight was increased by nearly 10%, compared with the unmodified PSA.