引用本文:
张秋红, 刘凯强, 刘静, 薛敏, 彭军霞, 房喻. 含吡啶基胆固醇类小分子有机胶凝剂的合成及其胶凝行为[J]. 应用化学,
2008, 25(9): 1001-1006.
Citation: ZHANG Qiu-Hong, LIU Kai-Qiang, LIU Jing, XUE Min, PENG Jun-Xia, FANG Yu. Synthesis and Gelation Behavior of Pyridine-Containing Cholesterol-Based Low Molecular Mass Organic Gelators[J]. Chinese Journal of Applied Chemistry, 2008, 25(9): 1001-1006.
Citation: ZHANG Qiu-Hong, LIU Kai-Qiang, LIU Jing, XUE Min, PENG Jun-Xia, FANG Yu. Synthesis and Gelation Behavior of Pyridine-Containing Cholesterol-Based Low Molecular Mass Organic Gelators[J]. Chinese Journal of Applied Chemistry, 2008, 25(9): 1001-1006.
含吡啶基胆固醇类小分子有机胶凝剂的合成及其胶凝行为
English
Synthesis and Gelation Behavior of Pyridine-Containing Cholesterol-Based Low Molecular Mass Organic Gelators
Abstract:
New cholesterol-based low molecular mass organic gelators bearing a 2-,3-,or 4-pyridyl unit,which are denoted as 1,2,and 3,respectively,have been synthesized,and their corresponding salts(1',2',3') have also been prepared by simply protonating them with HCl.It is revealed that both the gelation behavior of the gelators and the micro-structures of the xerogels strongly depend on the relative position of N atom in the pyridyl unit and the protonation state of the pyridyl unit.FT-IR and 1H NMR studies demonstrate clearly that hydrogen bonding between the amide groups of the gelators play an important role in the formation of the organogels.XRD studies show that the primary assembly of compund 1 in benzene is similar to that of compund 1' in the same solvent,and furthermore is also similar to that of compund 1 in solid state.The repeat units of the three aggregates are almost the same,and are very close to the size of molecule 1.
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Key words:
- low molecular mass organic gelators
- / gel
- / pyridine
- / cholesterol
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