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氯化氫的反应动力学

返回打印发布时间：2012/12/11 点击：11607

采用电导率法研究了氯化天然橡胶(CNR)在热空气中脱氯化氫的反应动力学。结果表明,CNR脱氯化氫反应过程可以分为3个阶段:诱导期、加速期和恒速期。在第1阶段,脱氯化氫速率很慢,产生的氯化氫量几乎为0;在第2阶段,脱氯化氫速率逐渐加快;在第3阶段,脱氯化氫速率恒定,反应级数为0,表观活化能为50.68kJ/mol。随反应温度升高,脱氯化氫残余物中的共轭双键数量增多。CNR分子中与甲基相连的碳氯键比其他碳氯键稳定。

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