文献类型：期刊文献

英文题名：Organic/inorganic hybrid bismaleimide resin with octa(aminophenyl)silsesquioxane

作者：Huang, Fuwei[1];Rong, Zhuxia[1];Shen, Xuening[1];Huang, Farong[1];Du, Lei[1];Li, Zhongping[2]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat Minist Educ, Shanghai 200237, Peoples R China;[2]Res Inst Mat & Processing Technol, Beijing 100076, Peoples R China

年份：2008

卷号：48

期号：5

起止页码：1022

外文期刊名：POLYMER ENGINEERING AND SCIENCE

收录：;EI(收录号：20082211278570);WOS:【SCI-EXPANDED(收录号:WOS:000255436300024)】；

语种：英文

外文关键词：Catalyst activity - Fourier transform infrared spectroscopy - Nitration - Nitric acid - Nuclear magnetic resonance spectroscopy

摘要：Octa(aminophenyl)silsesquioxane (OAPS) was prepared in two steps by the nitration of octaphenylsilsesquioxane (OPS) in fuming nitric acid to form octa(nitrophenyl)silsesquioxane (ONPS), followed by the mild reduction of ONPS with Pd/C as a catalyst. OPS, ONPS and OAPS were characterized by FTIR, H-1 NMR, and Si-29 NMR techniques. Modification of a bismaleimide (BMI) resin with OAPS and dipropargyl ether of bisphenol A (DPBPA) was investigated. The modified resins, OAPS/DPBPA/BMI, were characterized with DSC, FTIR and rheology analyses. The results showed that the modified resins have good processability. The DMA results indicated that the glass transition temperature (T-g) of the cured OAPS/DPBPA/BMI hybrid resins reached 350 degrees C. The decomposition temperature (T-d5) of the cured resins decreased but the char yield (Y-c, 800 degrees C) increased as the OAPS loading increased, especially in air.