新型共聚三唑树脂体系的研究

Study of Novel Copolytriazole Resin

以N,N,N′,N′-四炔丙基-4,4′-二氨基二苯甲烷(TPDDM)、4,4′-联苯二苄叠氮(BAMBP)和二乙炔基苯(DEB)为单体原料,以1,3-偶极环加成反应进行三元共聚,制备出共聚型三唑树脂(C-PTA树脂)。研究了单体配比及不同结构DEB对C-PTA树脂耐热性能的影响。结果表明:BAMBP、TPDDM、DEB的最优摩尔配比为1∶0.7∶0.7,此配比下C-PTA树脂固化物的玻璃化转变温度(Tg)为265℃,在空气和氮气气氛中的5%热失重温度Td5分别为329℃和340℃。当参与共聚反应的DEB全为间位结构时,C-PTA树脂的Tg最高。

Using N,N,N＇,N＇ -tetrapropargyl-diamino diphenyl methane（TPDDM）, 1,1＇-bezidomethyl-4,4＇-biphe- nyl（BAMBP） and diethynylbenzene（DEB） as raw materials, a copolytriazole resin（C-PTA resin） was pre- pared via 1,3-dipolar cycloaddition reaction. The effects of molar ratio of monomers and different DEB structure on the heat-resistance of the C-PTA resin were studied. The results show that the best molar ra- tio of BAMBP, TPDDM and DEB is 1：0.7： 0.7, under the ratio, the glass transition temperature（Tg） of the C-PTA resin is 265 ℃, and the 5% weight loss temperature is 329 ℃ and 340 ℃ at air and nitrogen atmosphere respectively. When the DEB structure is meta position structure, the Tg of the C-PTA resin is the highest.