Supermolecular hydrogel material for constructing calixarene and preparation method of supermolecular hydrogel material
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A technology of supramolecular hydrogel and calixarene is applied in the field of preparation and application of supramolecular hydrogel, and achieves the effects of high yield, simple operation and broad application prospect.
Inactive Publication Date: 2014-12-17
NANKAI UNIV
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However, hydrogels based on sulfonated c
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[0029] A preparation method of a novel supramolecular hydrogel material, comprising the steps of:
[0030] 1) Preparation of dodecyl-modified sulfonated calix[4]arene:
[0031] Dissolve 1.7g (4mmol) of calix[4]arene in 60mL of acetonitrile, add 0.41g (17mmol) of sodium hydride, and heat to reflux for 0.5 hours under nitrogen protection. Thereafter, 4.98 g (20 mmol) of bromododecane was added, and reflux was continued for 48 hours. Cool to room temperature, filter and spin dry the solvent, add 100ml of dichloromethane to dissolve, wash the organic phase with 0.2mol / L hydrochloric acid (3×50mL) and distilled water (50mL) respectively. Then add anhydrous sodium sulfate and dry for 9h. The desiccant was filtered, and the concentrated crude product was separated with a silica gel column, and the eluent was a dichloromethane-petroleum ether solution with a volume ratio of 1:1 to obtain 3.95 g of a white dodecyl-modified calix[4]arene solid, Yield 90%.
[0032] Add 3 mL of chloro...
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Abstract
The invention discloses a supermolecular hydrogel material for constructing calixarene and a preparation method of the supermolecular hydrogel material. The supermolecular hydrogel material is prepared from dodecyl modified sulfonated calix[4]arene (SC4AD) and methyl viologen modified polyvinyl alcohol under the interaction of supermolecules. The preparation method comprises the steps of self-aggregating SC4AD in a water liquid to form a micelle; and crosslinking the SC4AD micelle through PVA-MV by virtue of the host-guest bonding capacity of viologen and sulfonated calixarene to form the supermolecular hydrogel which is stable at room temperature. The supermolecular hydrogel material which is stable at room temperature is obtained by using a simple, convenient and feasible liquid mixing way by virtue of the advantage that a specific group of the viologen as a guest can be identified by the sulfonated calixarene. Compared with methods for synthesizing other hydrogels, the method disclosed by the invention has the advantages of simplicity in operation and high yield and is a convenient and effective hydrogel preparation method. The supermolecular hydrogel material has a wide application prospect in the field of materials.
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technical field [0001] The invention belongs to the technical field of smart materials, in particular to the preparation and application of a supramolecular hydrogel constructed from calixarene. Background technique [0002] Water is an essential part of living organisms, it mediates and regulates complex biological processes in living organisms (see: L. Fang, S. Basu, C. H. Sue, A. C. Fahrenbach, J. F. Stoddart, J. Am. Chem. Soc. 2011, 133 , 396-399.). Gels formed in aqueous solutions, known as hydrogels, have been defined as an important field of research since the late 1950s (see E. A. Appel, J. del Barrio, X. J. Loh, O. A. Scherman, Chem. Soc. Rev. 2012 , 41, 6195-6214.). This is mainly due to its very wide range of applications, including superabsorbent materials, chemical and biological matrices, storage materials, material delivery on biopharmaceuticals, and the construction of biological tissue engineering (see: M. P. Lutolf, Nat. Mater. 2009, 8 , 451-453;...
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