Formation and Characteristics of Acrylonitrile/Urea Inclusion Compound  

丙烯腈-尿素包合物的形成过程及特征

作　　者：邹均庭[1] 王雨松[1] 庞文民[1] 石磊[1] 鲁非[1] 

机构地区：[1]中国科学技术大学合肥微尺度物质科学国家实验室筹,合肥230026

出　　处：《Chinese Journal of Chemical Physics》2013年第2期198-202,I0004,共6页化学物理学报（英文）

摘　　要：The formation process and composition of the acrylonitrile/urea inclusion compounds （AN/UIC） with different aging times and AN/urea molar feed ratios are studied by differential scanning calorimetry （DSC） and X-ray diffraction （XRD）. It is suggested that DSC can determine the guest/host ratio and the heat of decomposition. Meanwhile, the guest/host ratio and heat of decomposition are obtained, which are 1.17 and 5361.53 J/mol, respec- tively. It is suggested AN molecules included in urea canal lattice may be packed flat against each other. It is found that the formation of AN/UIC depends on the aging time. XRD results reveal that once AN molecules enter urea lattice, AN/UIC are formed, which possess the final structure. When AN molecules are sufficient, the length of AN molecular arrays in urea canals increases as aging time prolonging until urea tunnels are saturated by AN.

关 键 词：ACRYLONITRILE Urea inclusion compound Molar ratio Heat of decomposition Formation process 

分 类 号：O6[理学—化学]