硅掺杂辉光放电聚合物薄膜的热稳定性研究

采用等离子体辉光放电聚合技术,在不同四甲基硅烷(TMS)流量条件下制备了硅掺杂辉光放电聚合物(Si-GDP)薄膜,采用傅里叶变换红外光谱、X射线光电子能谱和热重(TG)分析技术分析了不同TMS流量对Si-GDP薄膜结构与热稳定性的影响.结果表明:随着TMS流量在0–0.06 cm³/min范围变化,Si-GDP薄膜中Si的原子含量C_Si为0–16.62%;含Si红外吸收峰的相对强度随TMS流量的增加而明显增大;Si-GDP薄膜的TG分析显示,温度在300 ℃时,随TMS流量的增加,Si-GDP薄膜的失重减少,热稳定性增强. 关键词： 硅掺杂辉光放电聚合物薄膜 X射线光电子能谱 热稳定性

Thermal stability of Si-doped glow discharge polymer films

The Si-doped glow discharge polymer (Si-GDP) films are deposited by glow discharge polymerization technology at different tetramethylsilane (TMS) flows. The chemical structure, the composition and the thermal stabilities of Si-GDP films are analyzed by the Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy and thermal gravimetric analysis. The results show that the Si content increases from 0 to 16.62%, when the flow of TMS changes from 0 to 0.06 cm³/min. The relative content of Si-C, Si-H, Si-O, Si-CH₃ increases with TMS flow rate increaseing. As TMS flow increases, the thermal stability of Si-GDP film becomes good.