Supramolecular-polymer double network eutectic gel and its preparation method and application
A polymer and supramolecular technology, applied in the field of gel, can solve the problems of self-healing and adhesion that have not yet been seen, and achieve the effects of excellent self-healing performance, fast adhesion and excellent self-healing.
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[0046] One aspect of the embodiments of the present invention provides a method for preparing a small molecule-based supramolecular-polymer double network eutectic gel, which includes:
[0047] Heat the first mixed reaction system containing bisglucosamide amphiphile, polymer monomer, photoinitiator, cross-linking agent and deep eutectic solvent to dissolve completely, and then cool to room temperature to form the first supermolecular condensation. The gel network was then subjected to photoinitiated polymerization to obtain a supramolecular-polymer double network eutectic gel.
[0048] In some more specific embodiments, the preparation method includes: mixing bisglucamide amphiphilic molecules, polymer monomers, photoinitiators, crosslinking agents and deep eutectic solvents to form the first mixed reaction system, and then heated until completely dissolved, then the first mixed reaction system was lowered to room temperature and left to stand for 5-60 minutes to form the fir...
Embodiment 1
[0083] Dissolve δ-gluconolactone in methanol, then reflux and stir at 70°C for 1h, after that, add 1,12-diaminododecane, again reflux and stir the reaction mixture at 70°C for 2h, and filter while hot The mixture and the filter cake were repeatedly washed with cold methanol and ether, and dried in a vacuum oven to obtain the double glucosamide amphiphile BGA-12;
[0084]Accurately weigh the above 25mg BGA-12, 1000mg N-(2-hydroxyethyl)acrylamide (HEAA), 44.8mgIrgacure 2959, 10μL (10mg / mL) MBA, 1000mg choline chloride-ethylene glycol solution in a glass vial , after heating until completely dissolved, pour it into a dumbbell-shaped mold with a thickness of 2 mm while it is still hot, cool it down to room temperature and let it stand for 30 minutes to form the first supramolecular gel network, and then irradiate it under a UV lamp with a wavelength of 365 nm for 2 minutes , to obtain the BGA-12 / PHEAA supramolecular-polymer double network eutectic gel sample, in the BGA-12 / PHEAA s...
Embodiment 2
[0086] Accurately weigh 40.0 mg BGA-12 prepared in Example 1, 1000 mg N-(2-hydroxyethyl) acrylamide (HEAA), 44.8 mg Irgacure2959, 46 μL (10 mg / mL) MBA, 1000 mg choline chloride-ethylene glycol Alcohol solution in a glass vial, heated until completely dissolved, poured into a dumbbell-shaped mold with a thickness of 2mm while it was still hot, cooled naturally to room temperature for 30min, and formed the first layer of supramolecular gel network, and then the ultraviolet light with a wavelength of 365nm Irradiated under the lamp for 1min to obtain the BGA-12 / PHEAA supramolecular-polymer double network eutectic gel sample. In the BGA-12 / PHEAA supramolecular-polymer double network eutectic gel, the BGA-12 Quality accounts for 4% of choline chloride-ethylene glycol solution quality, and the mass ratio of N-(2-hydroxyethyl) acrylamide (HEAA) and choline chloride-ethylene glycol solution is 100: 100; Prepared The electrical conductivity of the BGA-12 / PHEAA supramolecular-polymer do...
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