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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．
Objective To synthesize nonlinear optical materials with large nonlinear coefficients and fast response. Methods Five new pyrimidine ring substituted diacetylene compounds were synthesized by the reaction of isocyanates with undecylenoyl chloride and pentadienol. Results The molecular structure of the compound is consistent with the information reflected in its NMR, MS and IR spectra. These five new compounds are the first synthesis, and no literature. Most of them are easily polymerizable, have high chain densities, are soluble in polymers, and have good thermal stability, in many respects, comparable to the best available compounds, PTS and poly-4BCMU. CONCLUSIONS The synthesized compounds show the same expected performance, which makes it possible to extensively study the nonlinear optical properties of these compounds.