| The effects of the amount of 1,1,3,3-tetramethyl-1,3-divinyldisiloxane(MviMvi), reaction temperature and time, and other factors on the stability of Karstedt’s catalyst were studied, and its structure was discussed. The results showed that n(MviMvi)/n(H2PtCl6) ratio of 14:1 was suitable for reflux reaction at 70 ℃ for 1.5 h, and the stability of Karstedt’s catalyst prepared under these conditions was up to 6 months at room temperature. The optimization of the preparation process, the acquisition of dominant structure 2 and the timely removal of low volatile matter will increase the stability of the platinum (0) complexes. |
