摘要
从分子结构设计出发,采用二乙炔基苯、苯基二氯硼烷和甲基氢二氯硅烷为主要原料,采用格氏试剂法合成了一种耐高温硼硅炔有机-无机杂化树脂聚(二乙炔基苯-硅烷-硼烷)(PASB)。采用FT-IR、1H-NMR、13C-NMR和GPC对其结构进行了表征,利用DSC和TGA研究了聚合物的固化反应行为和耐热性能,讨论了结构中不同硅硼含量与产物性能之间的依赖关系。结果表明,PASB树脂常温下黏度适中,可以在较低的温度下发生固化交联反应,具有良好的加工性能。其固化物具有良好的耐热性,在N2气氛下失重5%时的温度(Td5)均高于600℃,1000℃的质量保留率大于85%。
A high temperature-resistant organic-inorganic hybrid resin, poly （diethynylbenzene-silane-borane） （PASB）, was synthesized from phenylboron dichloride, dichloromethylsilane and diethynylbenzene using Grignard reagent method. The structure of PASB was characterized by FT-IR, 1H-NMR, 13C-NMR and GPC. The curing behavior of PASB resin was studied by DSC and thermal stability of the cured resin was analyzed by TGA. Then the dependencies between different silicon boron content in the structure and properties of the product were also discussed. The results show that PASB has moderate viscosity, can be cured at a relative low temperature and easily processed. The cured PASB resins have excellent thermal stability. The temperature of 5 % mass loss（ TG） under nitrogen and the residue at 1000 ℃ are up to 600 ℃ and 85 %, respectively.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2013年第4期1-4,共4页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(51073053)
中央高校基本科研业务费资助
