混合溶剂体系中葫芦[6]脲溶解度的测定  

Determination of CB[6] solubility in mixed solvent system

作　　者：孙旭镯[1] 李波[1] 王宁[1] 陈静[1] 万东锦[1] 

机构地区：[1]河南工业大学化学化工学院,河南郑州450001

出　　处：《应用化工》2011年第11期2026-2029,2033,共5页Applied Chemical Industry

基　　金：国家自然科学基金(NSFC21101057);河南工业大学博士基金(150392)

摘　　要：以NaCl水溶液作为基础溶剂,选取EtOH、DMSO、DMF 3种有机溶剂与之混合作为溶剂,通过紫外分光光度法测定了葫芦[6]脲(CB[6])在不同比例含量混合溶剂中的溶解度。结果表明,随着有机溶剂的加入,CB[6]的溶解度不断减小。在DMF/NaCl水溶液混合体系中,CB[6]的溶解度降低是最大的,而且在体积比5:5,CB[6]的溶解度是几个混合体系中最小的。对于DMSO/NaCl水溶液混合体系,DMSO比例超过1/2时,对CB[6]溶解度影响增大。EtOH/NaCl水溶液混合体系对CB[6]溶解度影响是最小的,说明极性较小的有机溶剂对CB[6]溶解度的影响较小。Taking three organic solvents EtOH,DMSO,DMF mixed with the basic solvent NaCl aqueous solution as the solvent,the solubility of cucurbit[6]uril in the mixed solvents with different ratios was determined by ultra-violet spectrophotometry.The results showed that the solubility of CB[6] decreased with the addition of the organic solvent.The decrease of the solubility of CB[6] in DMF/NaCl mixed system was the biggest,while the smallest solubility was at the ratio of（v/v） 5∶ 5.The influence of the solubility of CB[6] increased after the ratio of DMSO was up to 5∶ 5 in the DMSO/NaCl system.The influence to the solubility of the EtOH/NaCl system was the smallest.It demonstrated that the influence of the less polar solvent was less than the polar solvent.

关 键 词：葫芦脲 溶解度 混合溶剂 UV 

分 类 号：O641.3[理学—物理化学]