论文部分内容阅读
等离子化学是使物质激发至等离子状态进行反应而得到化合物的一种方法。其中高温等离子体,如电弧放电及等离子射流等,由于相当高的气体温度(5000°K以上),所以适于制备结构简单的有机物和无机物。而近年来开发的低温等离子的化学反应,则由于它对化合物的结构破坏较少,同时电子碰撞可以随电场强度和压力的大小而改变,所以可以控制电子的强度使产物少受破坏。特別对于有机物,由于容易变成自由基,而且在低压下自由基的寿命较长,所以可使分子结构增大,有可能用于合成较为复杂的有机物和无机物,甚至于高分子聚合物。
Plasma chemistry is a method of exciting a substance to a plasma state to react to give a compound. Among them, high temperature plasma, such as arc discharge and plasma jet, are suitable for preparing simple organic and inorganic substances due to the relatively high gas temperature (above 5000 ° K). In recent years, the chemical reaction of low-temperature plasma has been developed. Because of its less damage to the structure of the compound, the electron collision can change with the intensity and pressure of the electric field. Therefore, the intensity of the electron can be controlled to make the product less damaged. Especially for organic substances, they are easy to become free radicals, and the life span of free radicals is long at low pressure, so the molecular structure can be increased, and it is possible to synthesize more complicated organic and inorganic substances and even high polymer.