Synthesis, characterization, and properties of a novel polyhedral oligomeric octamethyldiphenylsulfonylsilsesquioxane

被引：6
|
作者：
Li, Ziqian [1 ]
Li, Dinghua [1 ]
Yang, Rongjie [1 ]
机构：
[1] Beijing Inst Technol, Sch Mat, Natl Engn Res Ctr Flame Retardant Mat, Beijing 100081, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE | 2015年 / 50卷 / 02期
基金：
对外科技合作项目（国际科技项目）;
关键词：
THERMAL-PROPERTIES; MECHANICAL-PROPERTIES; SILSESQUIOXANE POSS; POLYMERS; NANOCOMPOSITES; COPOLYMERS;
D O I：
10.1007/s10853-014-8629-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel polyhedral oligomeric octamethyldiphenylsulfonylsilsesquioxane (OMDPSS) was synthesized from octaphenylsilsesquioxane and benzenesulfonyl chloride via a Friedel-Crafts reaction in high yield. OMDPSS was characterized by Fourier transform infrared spectroscopy, H-1 NMR, C-13 NMR, and Si-29 NMR spectroscopy, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), wide-angle X-ray diffraction, differential scanning calorimetry, and elemental analysis, and found to be an amorphous polyhedral oligomeric silsesquioxane with a (RSiO3/2) 8 structure. OMDPSS exhibited good solubility in commonly used solvents and superior thermal stability according to thermogravimetric analysis. Its initial thermal decomposition temperature (Td5%) was found to be 401 degrees C in air and 428 degrees C in nitrogen.
引用
收藏
页码：697 / 703
页数：7
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