Effect of chloralkanes on the phenyltrichlorosilane synthesis by gas phase condensation

To enhance the process of phenyltrichlorosilane synthesis using gas phase condensation, a series of chloralkanes were introduced. The influence of temperature and chloralkane amount on the synthesis was studied based on the product distribution from a tubular reactor. The promoting effect of chloralkane addition was mainly caused by the chloralkane radicals generated by the dissociation of C–Cl bond. The promoting effect of the chloromethane with more chlorine atoms was better than those with less chlorine atoms. Intermediates detected from the reactions with isoprene and bromobenzene demonstrated that both trichlorosilyl radical and dichlorosilylene existed in the reaction system in the presence of chloralkanes. A detailed reaction scheme was proposed.

甲基苯基二氯硅烷与苯基三氯硅烷共水解缩聚研究

研究了甲基苯基二氯硅烷与苯基三氯硅烷的共水解缩合反应,探讨了甲基苯基二氯硅烷含量、反应温度、水的用量及反应时间对水解缩聚反应的影响,确定了最佳工艺。采用红外、核磁等手段对水解缩聚产物进行了结构表征。