中文摘要：

以端氢硅油（PHMS）和二缩三丙二醇二丙烯酸酯（TPGDA）为原料在铂催化剂的作用下，用硅氢加成反应合成了两端带有双键的辐射固化聚硅氧烷。采用红外光谱内标法测定了端氢硅油中活泼氢的转化率，通过正交试验确定了最佳反应条件：反应温度为100℃、反应时间为4h、二缩三丙二醇二丙烯酸酯与端氢硅油的物质的量比为1．2：1．0，反应催化剂氯铂酸为0．4％。产品经IR和HNMR表征，证明是所需产物。

英文摘要：

The poly（methyl silicone） for UV curing with side group of C= C was prepared by hydrosilylation reaction of poly（methylhydrosiloxane） （PHMS） and （TPGDA） in toluene using isopropanol solution of H2PtCl6 as a catalyzer. The conversion yield of the reaction was determined by internal standard method of FTIR. The optimal reaction process was acquired by the orthogonal design： reaction temperature was 100℃, reaction time was 4 h, and molar ratio of the TPGDA to PHMS was 1.2 ： 1.0,catalyzer was 0.4 %. The structure of the object was characterized by FTIR and HNMR.