腺苷的热解过程及其热分解非等温动力学

目的：研究了腺苷的热解过程及非等温动力学，方法：采用了TG－DTG热重仪与红外技术测定腺苷的热解曲线，用Ozawa多升温速率法以及Achar微分法和Coats-Redlfern积分法确定热分解函数，结果：由TG及IR解析了热解过程并得到动力学参数活活化能E，指前因子A，结论：腺苷的热解产物为腺嘌吟，第1步热分解动力学表达式为：dα／dt=Ae^-E/RT2(1-α)-1N(1-α）]^1/3.

Non-Isothermal Kinetics and Thermal Decomposition Procss of Adenosine

Purpose: to study the thermal decomposition process and the non-isothermal kinetics of adenosine. Method: using TG (thermogravimetry)-DTG (differential thermogravimetry) and IR techniques to determinethe thermal decomposition curves of adenosine and using Achar differential method and Coats-Redfern integral method as well as multi-accelerated heating rate method (Ozawa method) to determine the thermal decomposition functions. Results: from TG curves and IR spectra, the thermal decomposition processes of adenosine were deduced and the thermal decomposition kinetics parameters, such as activation energy (E), pre-exponential factor (A) were also determined. Conclusion: the product of the thermal decomposition of adenosine is adenine, the kinetic equation of the thermal decomposition of adenosine for the first stage is dα/dt=Ae-E/RT2(1-α)-ln(1-α)]1/3.