新型三嗪类氮-硅成炭剂的合成及其热稳定性  

Synthesis and Thermal Stability of a Novel Triazine-based N- Si Charring Agent

作　　者：刘胜男[1] 赵培华[1] 李欣航[1] 梁文俊[1] 刘亚青[1] 

机构地区：[1]中北大学材料科学与工程学院山西省高分子复合材料技术研究中心,山西太原030051

出　　处：《合成化学》2015年第1期27-30,35,共5页Chinese Journal of Synthetic Chemistry

基　　金：国家自然科学青年基金资助项目(21301160);山西省科技攻关项目(20120321016-02)

摘　　要：以三聚氯氰(1)和γ-氨丙基三乙氧基硅烷(2)为原料,经亲核取代反应合成了一种新型三嗪类氮-硅成炭剂——2-氯-4,6-二(3-三乙氧基硅烷基-1-氨丙基)-1,3,5-三嗪(3),其结构和热性能经1H NMR,IR和TGA表征。考察了溶剂、缚酸剂、原料比和反应温度对3产率的影响。合成3的最佳反应条件为:以丙酮为溶剂,Na2CO3为缚酸剂,1 10 mmol,n(2)∶n(1)=2.4,于50℃反应6 h,产率98.1%。3的初始分解温度为292℃,700℃时成炭率34.5%。A novel triazine-based N-Si charring agent,2-chloro-4,6-di（ 3-triethoxysiloxy-1-aminopropyl）-1,3,5-triazine（ 3）,was synthesized by nucleophilic substitution reaction of cyanuric chloride（ 1） with（ 3-aminopropyl） triethoxysilane（ 2）. The structure and thermal property were characterized by^1 H NMR,IR and TGA. Effects of solvent,acid-blinding agent,molar ratio of raw materials and reaction temperature on the yield of 3 were investigated. The yield of 3 was 98. 1% under optimal reaction conditions[acetone was solvent,Na2CO3 was acid-blinding agent,1 was 10 mmol,n（ 2） ∶ n（ 1） was 2. 4,at 50 ℃ for 6 h]. Initial decomposition temperature of 3 was 292 ℃,and the char yield is about 34. 5% at 700 ℃.

关 键 词：三嗪类成炭剂 氮-硅成炭剂 合成 热稳定性 

分 类 号：O626.43[理学—有机化学] O621.3[理学—化学]