甲基肼水溶液的脉冲辐解研究

Pulse Radiolysis of Aqueous Methylhydrazine Solutions

利用脉冲电子束进行甲基肼水溶液的脉冲辐解研究,对其瞬态光谱中的主要吸收峰作了归属,并初步考察了这些瞬态物种的生长、衰减等行为。结果表明,.OH与甲基肼反应生成CH3.NNH2,速率常数为(2.4±0.1)×1010 mol-1.L.s-1;ea-q与甲基肼反应生成CH3.NHNH2自由基,速率常数为(2.7±0.2)×108 mol-1.L.s-1。

Pulse radiolysis of aqueous methylhydrazine solutions under different conditions was studied. The main characteristic peaks in these transient absorption spectra were attributed and the build-up/decay trends of several transient species were investigated. The reaction product of .OH radical and methylhydrazine is CH_3 · NNH_2 radical with a rate constant of （2.4±0. 1） × 10^10 mol^-1 · L · s^-1. The reaction product of e-aq, and methylhydrazine is CH_3 · NHNH_2 radical with a rate constant of （2.7±0.2）×10^8 mol^-1 · L· s^-1.