A kind of adaptive smart material based on coordination bond and its preparation method and application
A smart material and self-adaptive technology, applied in the direction of nickel organic compounds, copper organic compounds, cobalt organic compounds, etc., can solve the problems of high bond energy and adverse effects of polymer materials on aging resistance, and achieve high mechanical stiffness and excellent reliability. The effect of high recovery and high yield
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Embodiment 1
[0048] Preparation of multidentate flexible ligand: 50.00 g of pentaerythritol tetra-3-mercaptopropionate was added to the flask, and then 100 mL of tetrahydrofuran was added as a solvent, the reaction temperature was controlled at room temperature, the stirring speed was 100 r / min, and stirred for 30 min until completely dissolved; 44.20g of N-allylimidazole and 1.05g of benzoin dimethyl ether were added to the above solution as a photoinitiator, and ultraviolet irradiation with a wavelength of 365nm was used, and the reaction temperature was controlled to room temperature under sealed conditions, and the stirring speed was 200r / min, and the reaction was performed for 60min to obtain solutions containing polydentate flexible ligands;
[0049] Preparation of metal salt solution: take 17.45 g of copper chloride, add 50 mL of methanol as a solvent, ultrasonically mix evenly, ultrasonic power 120W, ultrasonic time 30min, ultrasonic temperature room temperature;
[0050] The metal...
Embodiment 2
[0054] Preparation of multidentate flexible ligand: 50.00 g of pentaerythritol tetra-3-mercaptopropionate was added to the flask, and then 100 mL of tetrahydrofuran was added as a solvent, the reaction temperature was controlled at room temperature, the stirring speed was 100 r / min, and stirred for 30 min until completely dissolved; 29.05g of acrylamide and 1.05g of benzoin dimethyl ether (DMPA) were added to the above solution as a photoinitiator, and ultraviolet irradiation with a wavelength of 365nm was used to control the reaction temperature at room temperature under sealed conditions, and the stirring speed was 200r / min. solutions of polydentate flexible ligands;
[0055] Preparation of metal salt solution: take 13.26g of nickel chloride, add 50mL of methanol as a solvent, ultrasonically mix evenly, ultrasonic power 120W, ultrasonic time 2h, ultrasonic temperature room temperature;
[0056] The metal salt solution was added to the solution containing the multidentate fle...
Embodiment 3
[0059] Preparation of multidentate flexible ligand: 50.00 g of pentaerythritol tetra-3-mercaptopropionate was added to the flask, and then 100 mL of tetrahydrofuran was added as a solvent, the reaction temperature was controlled at room temperature, the stirring speed was 200 r / min, and stirred for 10 min until it was completely dissolved; 29.47g of acrylic acid and 0.98g of benzoin ether were added to the above solution as a photoinitiator, and ultraviolet irradiation with a wavelength of 365nm was used, and the reaction temperature was controlled to room temperature under sealed conditions, and the stirring speed was 100r / min, and the reaction was performed for 180min to obtain a polydentate flexible ligand containing solution;
[0060] Preparation of metal salt solution: take 27.89g of zinc chloride, add 50mL of methanol as a solvent, ultrasonically mix evenly, ultrasonic power 30W, ultrasonic time 120min, ultrasonic temperature room temperature;
[0061] The metal salt sol...
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