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离子液体中超分子自组装准聚轮烷
Supramolecular Self-Assembly of Polypseudorotaxanes in Ionic
【作者】 靖波; 陈晓; 郝京诚; 邱化玉; 柴永存; 张国栋;
【Author】 LiquidBo Jing, Xiao Chen*, Jing-Cheng Hao, Hua-Yu Qiu, Yong-Cun Chai, Guo-Dong Zhang Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, Shandong University, 250100, Jinan
【机构】 山东大学胶体与界面化学教育部重点实验室;
【Abstract】 The polypseudorotaxanes (PPRs) have been prepared by supramolecular self-assembly of β-cyclodextrins (β-CDs) threaded onto the triblock copolymers (Pluronic F127) in an ionic liquid [1-n-butyl-3-methylimidazolium hexafluorophosphate (bmimPF6)]. Structural characterizations of the assembled PPRs are carried out respectively with XRD, 13C CP/MAS NMR, and DSC techniques. The results indicate a channel-type structure for such produced inclusion complexes (ICs). Which one will finally be included inside β-CD, F127 or bmimPF6, is related to the ethanol amount around the initially β-CD/bmimPF6 ICs. At higher ethanol concentration, F127 may squeeze bmimPF6 molecules out from β-CDs and thread themselves instead into the cavity. They finally precipitate with further stacking.
- 【会议录名称】 中国化学会第二十五届学术年会论文摘要集(下册)
- 【会议名称】中国化学会第二十五届学术年会
- 【会议时间】2006-07
- 【会议地点】中国吉林长春
- 【分类号】O631.3
- 【主办单位】中国化学会