采用相转移催化法合成了含联炔多炔丙基的单体N,N,N’,N’-四炔丙基-1,4-双(3-氨基苯)-丁二炔(TPBAPB),通过红外、核磁、元素分析等方法袁征了TPBAPB的结构.以TPBAPB与4,4’-联苯二苄叠氮(BAMBP)热聚合条件下的1,3-偶极环加成反应制备了一种新型的聚三唑树脂(H-PTA),利用红外和差示扫描量热法研究了树脂的固化行为,并通过动态力学分析和热失重分析考察了炔基与叠氮基不同摩尔比对树脂热性能的影响.结果表明,树脂具有良好的加工性能,能在较低的温度下进行固化(80℃左右),当炔基与叠氮基的摩尔比为1.2∶1.0时,固化后的树脂具有最佳的热性能,玻璃化转变温度(Tg)达到298℃,在氮气中5％的热失重温度(Td5)达到363℃.
N,N,N',N'-tetrapropargyl-1,4-bis (3-aminophenyl)-butadiyne (TPBAPB) was manufactured with 1,4-bis(3-aminophenyl)-butadiyne(BAPB) by phase transfer catalysis reaction and characterized by FT-IR,NMR and elemental analysis(EA).A polytriazole resin(H-PTA) was prepared via thermal 1,3-dipolar cycloaddition with TPBAPB and 1,1'-bezidomethyl-4,4'-biphenyl(BAMBP) as raw materials.The curing behaviors of the resin were traced by FT-IR and DSC.The effects of mole ratio of monomers on thermal properties of the H-PTA resin were studied by DMA and TGA.The results show that H-PTA resin is easily processed and can be cured around 80 ℃.The best molar ratio of alkyne to azide is 1.2∶ 1.0.Under this ratio,the glass transition temperature and the 5 ％ mass loss temperature of the cured resin can achieve to 298 ℃ and 363 ℃,respectively.
参考文献
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%