According to peak area of function group in FTIR spectroscope, the different conversion time curves of [SiH] and [CH=CH2] during the reaction process were got and its reason was presented reasonably.

• 结果表明，在反应过程中，硅氮基与乙烯基的浓度减少呈非线性关系，这可能是硅氮基在反应过程中与空气中的物质进行了反应，从而在消耗量上较乙烯基多的缘故。