八叠氮基聚倍半硅氧烷的合成及表征

摘要

POSS-(N3)8 was prepared via esterification, hydrolysis, and hydrosilylation accordingly, with 4-hydroxybenzoic acid, octakis (dimethylsiloxy) silsesquioxane, and sodium azide. The structure of POSS-(N3) 8 was characterized by 1 H NMR, 13 C NMR, and FT-IR. The effect of reaction temperature on the yield of POSS-(N3)8 was studied. The experimental results showed that the yield of POSS-(N3)8 was increased with decreasing the reaction temperature with the maximum yield of POSS-(N3)8 of 60% at 70 ℃.%以对羟基苯甲酸、八(二甲基硅氧基)聚倍半硅氧烷、叠氮化钠为原料,经酯化、醚化、水解、硅氢加成等反应制备了八叠氮基的六面体聚倍半硅氧烷[ POSS -(N3)8],通过1H NMR、13C NMR、FT- IR对其进行了表征；并探讨了叠氮化反应温度对POSS-( N3)8产率的影响.结果表明,随着叠氮化反应温度的降低,POSS- (N3)8的产率逐渐增加；当叠氮化反应温度为70℃时,POSS -(N3)8的产率达到60％.