Alkoxysilanes, particularly ethoxysilanes, are widely used as cross-linkers for the moisture-induced, room-temperature vulcanization (RTV) of silicones. Karstedt’s platinum catalyst is shown to be effective at converting commercially available small hydrosiloxanes containing 1–8 SiH groups, and higher molecular weight telechelic and pendant hydrosiloxane polymers, into the corresponding alkoxy compounds. Kinetic studies demonstrated that relatively high concentrations of platinum—500 ppm—were required for practical reaction rates to be realized. As with other silyl ether-forming processes, steric hindrance at both carbon (alcohol) and silicon centers retard the reaction progress. This alternative use of the platinum catalyst, employed widely in the silicone industry, permits the ready formation of small molecule and polymeric RTV alkoxysiloxane cross-linkers that can be used to tailor network structures.

中文翻译：

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将SiH化合物转化为烷氧基类似物的温和路线

烷氧基硅烷，特别是乙氧基硅烷，广泛用作有机硅的湿气诱导的室温硫化（RTV）的交联剂。证明Karstedt的铂催化剂可有效地将市售的含有1-8个SiH基团的小型氢硅氧烷以及更高分子量的遥螯和侧基氢硅氧烷聚合物转化为相应的烷氧基化合物。动力学研究表明，要实现实际的反应速率，需要相对较高的铂浓度（500 ppm）。与其他形成甲硅烷基醚的方法一样，在碳（醇）和硅中心的位阻都阻碍了反应的进行。在有机硅工业中广泛使用的铂催化剂的替代用途，