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研究了用气相裂解法制备Si－C—N复合纳米微粉时CH3SiHCl2氨解产物先驱体的合成及形成气溶胶时的行为，结果表明：合成温度对先驱体的摩尔质量有较大的影响，摩尔质量随红解温度的降低而增大；在温度较高时（10℃）合成的先驱体的摩尔质量小，分子内端基存在较多的-NH2基因，在气化时-NH2基团与-Si-H交联而使残余物增加；在-10℃时合成的先驱体摩尔质量较大，分子内端基上-NH2基团较少，在气化时残余较少；CH3SiHCl2氨解产物分子内存在较活泼Si－H、N—H基团，加热气化时发生部分交联反应，产生残余物
The synthesis of precursors of the hydrolysis products of CH3SiHCl2 and the behavior of the formation of aerosols during the preparation of Si-C-N composite nanopowder by gas phase pyrolysis were studied. The results showed that the synthesis temperature had a great influence on the molar mass of the precursor, The mass of the precursor increased with decreasing red-hot temperature. The molar mass of the precursor synthesized at a higher temperature (10 ° C) was smaller, and there were more -NH2 genes in the end-cap of the molecule. In gasification, -Si-H cross-linked to make the residue increase; the molar mass of the precursor synthesized at -10 ℃, NH2 groups on the intramolecular end groups less, less residue in the gasification; CH3SiHCl2 ammonolysis products Molecules exist more active Si-H, N-H group, partial heating reaction occurs when the crosslinking reaction, resulting in residue