| β－环糊精与水包合物的脱水过程机理及动力学研究 |
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| 引用本文： | 成庆堂,李晓桃,李靖华,娄向东,田圣军.β－环糊精与水包合物的脱水过程机理及动力学研究[J].河南师范大学学报(自然科学版),1996(4). |
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| 作者姓名： | 成庆堂 李晓桃 李靖华 娄向东 田圣军 |
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| 作者单位： | 河南师范大学化学系 |
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| 基金项目： | 河南省科委、教委自然科学基金 |
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| 摘 要： | 用等温热重法和非等温热重法研究了β－环糊精与水包合物的脱水过程，结果表明：包合物中的１１个水分子是在同一个阶段脱去的，脱水过程受三维相边界反应机理控制．其表观活化能Ｅ＝５９．２５ｋＪ·ｍｏｌ－１，频率因子Ａ＝８．６８５×１０６ｍｉｎ－１，动力学补偿方程式为ｌｏｇＡ＝０．４７３２Ｅ－１８．８６６４．
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| 关 键 词： | β－环糊精 包合物 动力学 热重分析 |
Mechanism and Kinetic Studies on the Dehydration of the Complex of β-cyclodextrin with Water |
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| Cheng Qingtang, Li Xiaotao, Li Jinghua, Lou Xiangdong, Tian Shengjun.Mechanism and Kinetic Studies on the Dehydration of the Complex of β-cyclodextrin with Water[J].Journal of Henan Normal University(Natural Science),1996(4). |
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| Authors: | Cheng Qingtang Li Xiaotao Li Jinghua Lou Xiangdong Tian Shengjun |
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| Abstract: | The dehydration of the complex of β-cyclodextrin with water was studied by means ofthermogravimetry Loth at the constant temperature and linear increasing temperature. The results show thatthe eleven water molecular are dehydrated at the same stage. The dehydration process is dominated by a three-dimensional phase boundary reaction (R3). The activition energy E is 59. 25kJ·mol-1. The preexponential factor A is 8. 685×106min-1. The kinetic compensation equation is logA=0. 4732E-18. 866 4. |
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| Keywords: | cyclodextrin inclusion complex kinetics thermal analysis |
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