Organic-inorganic hybrid porous monolithic material, preparation and applications thereof
An integral material and hybrid technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of difficult reaction control and complex preparation process, and achieve high column efficiency, good biocompatibility, and strong versatility.
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Embodiment 1
[0023] Preparation of POSS-SH functional monomer: First, take 15mL of mercaptopropyltrimethoxysilane (MPTS) and dissolve it in 360mL of methanol, add 30mL of concentrated hydrochloric acid (37%) dropwise to the solution, and reflux in an oil bath at 90°C for 24h ; After the reaction is completed, cool the reaction solution in an ice bath (-4 ~ 4 ° C) to obtain a crude product, wash the crude product with methanol five times to remove residual mercaptopropyltrimethoxysilane; then, dissolve it in dichloromethane The resulting crude product was extracted by adding water to the solution, collecting the dichloromethane layer, and then adding water to extract, repeating three times, finally collecting dichloromethane, adding anhydrous sodium sulfate to it and drying overnight (12h); finally, the obtained The solution was distilled under reduced pressure to obtain the product POSS-SH.
[0024] 1) Add POSS-SH 63.6mg into an empty centrifuge tube as a functional monomer;
[0025] 2) A...
Embodiment 2
[0043] 1) Add POSS-SH 51.0mg into an empty centrifuge tube as a functional monomer;
[0044] 2) Add 90 μL of diethylene glycol diethyl ether to the centrifuge tube in step 1) as a porogen;
[0045] 3) Add 149 μL of n-propanol to the centrifuge tube in step 2) as a porogen;
[0046] 4) Add 19.4 μL of 1,2,4-triethylcyclohexane as a functional monomer to the centrifuge tube in step 3);
[0047] 5) Add 35.3 μL of isophytol to the centrifuge tube in step 4) as a functional monomer;
[0048] 6) Add 0.2 mg of 2,2-dimethoxy-phenylacetophenone to the centrifuge tube of step 5) as a photoinitiator;
[0049] 7) Ultrasonicate the centrifuge tube in step 6) at room temperature for 3 minutes to completely dissolve it to form a uniform transparent solution;
[0050] 8) Introduce 1 μL of the prepolymer solution obtained in step 7) into a 75 μm (inner diameter) capillary tube that has been previously activated by 3-(methacryloxy)propyltrimethoxysilane with a syringe, and then Seal with sil...
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