Calixarene constructed supramolecular polymer material and preparation method thereof
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A technology of supramolecular polymers and calixarene, applied in the direction of organic chemistry, can solve the problems of difficult electrochemical manipulation process, poor water solubility of neutral viologen, etc., and achieve the effect of broad application prospects, simple operation and high yield
Inactive Publication Date: 2013-09-04
NANKAI UNIV
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But the fly in the ointment is that due to the poor water solubility of neutral viologen, it is difficult to truly realize its electrochemical manipulation process.
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[0031] A kind of supramolecular polymer material constructed by calixarene, the structure of its building unit is as follows Figure 7 As shown in the figure: bisSC4A represents ethyl-bridged sulfonated calix[4]arene, and its structural feature is that the lower phenolic hydroxyl group of sulfonated calix[4]arene is formed by a single bridge of ethylene; CB[8] Represents cucurbit[8]uril, whose structure is characterized by 8 glycoside uril units bridged by methylene; HBV 4+ It represents hexyl bridged methyl amethyst, and its structure is characterized by 1,6-hexylidene bridged dimethyl viologen.
[0032] A preparation method of a novel supramolecular polymer material, comprising the steps of:
[0033] 1) Preparation of ethyl bridged calix[4]arene:
[0034] Dissolve 1.7 g (4 mmol) of calix[4]arene in 60 mL of acetonitrile, add 0.28 g (5 mmol) of anhydrous sodium methoxide, and heat to reflux for 0.5 hour under nitrogen protection. Thereafter, 0.74 g (2 mmol) of ethylene gly...
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Abstract
The invention discloses a calixarene constructed supramolecular polymer material. The chemical formula of a repeat unit of the material is C210H206N72O64S8; and the material consists of ethyl-bridged p-sulfonated calix[4]arene, cucurbit[8]uril and hexyl-bridged methyl viologen, wherein the ethyl-bridged p-sulfonated calix[4]arene and the cucurbit[8]uril serve as a large-ring host, the hexyl-bridged methyl viologen serves as a guest, and the supramolecular polymer with a host-guest inclusion structure is constructed through host-guest bonding. The invention has the advantages that: by the recognition advantage of the p-sulfonated calix[4]arene and the cucurbit[8]uril on specific groups of the viologen, a fibrous polymer material is prepared by a simple and feasible solution mixing method, and the method is easy to implement, high in yield, convenient and effective; and by a chemical reduction means of adding hydrazine hydrate, the polymer material can be well reduced and depolymerized, and the supramolecular polymer material has wide application prospect in the field of materials.
Description
【Technical field】 [0001] The invention relates to a preparation technology of a supramolecular polymer material, in particular to a supramolecular polymer material constructed of calixarene and a preparation method thereof. 【Background technique】 [0002] Supramolecular polymers are a class of new materials constructed through non-covalent bond interactions and have supramolecular chemical properties and polymer material properties [see: 1) Brunsveld, L., Folmer, B.J.B., Meijer, E.W., Sijbesma , R.P.Chem.Rev.2001, 101, 4071-4097.2) De Greef, T.F.A., Smulders, M.M.J., Wolffs, M., Schenning, A.P.H.J., Sijbesma, R.P., Meijer, E.W.Chem.Rev.2009, 109, 5687-5754 .]. When subjected to external stimuli, supramolecular polymers have good bond reversibility compared to covalent polymer molecules. People take advantage of this advantage to construct polymer materials with heat sensitivity and acid-base response [see: 1) Bergman, S.D. , Wudl, F.J.Mater.Chem.2008, 18, 41-62.2) Cordier,...
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