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．
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.
出处
《河南师范大学学报（自然科学版）》
CAS
CSCD
1996年第4期44-47,共4页
Journal of Henan Normal University(Natural Science Edition)
基金
河南省科委
教委自然科学基金
