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聚二乙炔（ＰＤＡ）类化合物在超快全光开关、逻辑门和远距离通讯系统的多路传输等方面有着潜在的应用前景。但并不是所有的ＰＤＡ都能用于这些方面，它的选择应当考虑聚合性能、链密度、共轭度、溶解性、热稳定性及可加工性等多方面的因素。本文首次报道了５－（２－硫甲基－４－甲基－５－嘧啶基）－２，４－戊二炔－１－醇甲基丙烯酸酯（ＰＤＭＡ）的合成，该物质极易聚合、链密度高、聚合物可溶、单体热稳定性好，在许多方面可与当前最好的化合物ＰＴＳ及ｐｏｌｙ－４ＢＣＭＵ相媲美。
Polydialtylene (PDA) compounds have potential applications in ultra-fast all-optical switches, logic gates and multiplex transmission of long-distance communication systems. However, not all PDAs can be used in these aspects. Its choice should take into account various factors such as polymerization performance, chain density, conjugation, solubility, thermal stability and workability. We first reported the synthesis of 5- (2-thiomethyl-4-methyl-5-pyrimidinyl) -2,4-pentadiyn-1-ol methacrylate (PDMA) , High chain density, polymer solubility, good thermal stability of the monomer, in many ways comparable to the best available compounds PTS and poly-4BCMU.