【摘要】 目的合成具有非线性系数大、响应速度快等优点的非线性光学材料．方法利用异氰酸酯及十一烯酰氯和戊二炔醇反应合成５种新型嘧啶环取代二乙炔化合物．结果化合物分子结构与其ＮＭＲ，ＭＳ，ＩＲ谱图中所反映的信息相吻合．这５种新型化合物均为首次合成，且未见文献报道．它们大部分易聚合，链密度高，聚合物可溶，单体的热稳定性好，在许多方面可与当前最好的化合物ＰＴＳ及ｐｏｌｙ－４ＢＣＭＵ相媲美．结论所合成化合物表现出的性能与预计的一致，为广泛研究这类化合物的非线性光学性能提供了可能．更多还原

【Abstract】 Aim To synthesise the nonlinear materials with many advantages such as high nonliear coefficients, rapid response and high damage threshold etc.. Methods Five kinds of novel PDA compounds substituted with pyrimidine ring were synthesised by the reaction of isocyanate and acyl chloride with 5 (2 methylthio 4 methyl 5 pyrimidinyl) 2,4 pentadiyne 1 ol. Results The structure of them were identified by 1HNMR,MS,IR and elementary analysis. These five kinds of novel PDA compounds are first reported. Most of all have good heat stability, excellent UV polymerizability and high chain density. Their polymers are soluble in CHCl 3. In many aspects, they are comparable with PTS and poly 4BCMU. Conclusion The results are the same as what we presupposed, which proves some of our ideas to be true. Moreover, the results provide the possibility of extensive research of such compounds′ NLO properties.更多还原