Abstract: The preparation of modified cation resin supported platinum complex catalyst, and its catalytic properties for hydrosilylation reaction of styrene with methyl dichlorosilane were studied. Hydrosilylation reaction was carried out by using a fluid–phase flow reactor with the use of the catalyst prepared from easily available materials, cation resin, ethanolamine, and hexachloroplatinic acid. The catalyst displayed higher conversion activity, improved selectivity of β–addition products and enhanced thermal stability. The effects of temperature, the quantity of catalyst used, and reactant feed rate on hydrosilylation was discussed. At 70℃, when reactant feed rate was 6.7 mL/h and the quantity of catalyst was 2 g, the conversion of methyl dichlorosilane could reach 98.42% and the selectivity of β－addition products could be 99.23%. The reaction could be carried out for 21h without loss in catalytic activity.

摘要： 研究了改性阳离子树脂配合铂催化剂的制备及其催化苯乙烯与甲基二氯硅烷硅氢加成反应，反应在连续式多相催化反应器中进行。由阳离子树脂、乙醇氨和氯铂酸制备的改性阳离子树脂配合铂是一个催化活性和β–加成选择性高、热稳定性好的固体催化剂。考察了温度、催化剂用量、加料速率等因素对苯乙烯与甲基二氯硅烷硅氢加成反应的影响。在加料速率为6.7 mL/h、催化剂用量为2 g、反应温度为70 ℃条件下反应，甲基二氯硅烷单程转化率达到98.42 %，β－加成产物的选择性为99.23 %，反应连续进行21 h后催化剂性能仍保持稳定。