Biological coating based on ring-crosslinked polyphosphazene and preparation method thereof
A bio-coating, polyphosphazene technology, applied in anti-corrosion coatings and other directions, can solve problems such as the limitation of functional monomers, and achieve the effects of high reaction efficiency, simple preparation conditions and good biocompatibility
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Embodiment 1
[0032] The ring-crosslinked polyphosphazene is applied to the surface modification of the topological honeycomb polystyrene material. This example is implemented under the conditions of implementation and technical requirements.
[0033] 1. If figure 1 and Figure 5 Shown is the process of preparing polyphosphazene coating on topological honeycomb polystyrene surface:
[0034] 1) Dissolve 1g of polystyrene in 20mL of toluene, prepare honeycomb porous polystyrene on a clean glass substrate according to the breathing pattern method provided by the literature [Escale P.et al, European Polymer Journal 2012,6,1001] Membrane spare.
[0035] 2) 4,4-dihydroxydiphenyl sulfone is used as a multifunctional monomer.
[0036] 3) Weigh 20 mg of hexachlorocyclotriphosphazene and 44 mg of 4,4‐dihydroxydiphenyl sulfone in a molar ratio of (1:3), dissolve them in 8 mL of absolute ethanol, and disperse evenly by ultrasonication.
[0037] 4) Place the pre-prepared topological honeycomb polyst...
Embodiment 2
[0051] The ring-crosslinked polyphosphazene is applied to the surface modification of polystyrene materials. This example is implemented under the conditions of implementation and technical requirements.
[0052] 1. The process of preparing polyphosphazene coating on polystyrene surface:
[0053] 1) Dissolve 1 g of polystyrene in 20 mL of toluene, and drop the obtained solution on a clean glass substrate to prepare a polystyrene film for future use.
[0054] 2) 4,4-dihydroxydiphenyl sulfone is used as a multifunctional monomer.
[0055] 3) Weigh 20mg of hexachlorocyclotriphosphazene and 43mg of 4,4‐dihydroxydiphenylsulfone, the molar ratio is (1:3), dissolve in 8mL of absolute ethanol, and disperse evenly by ultrasonic.
[0056] 4) Place the pre-prepared polystyrene in a clean glass petri dish, add the solution in step 3) into the petri dish, and ensure that the solution completely submerges the substrate.
[0057] 5) Add 200 μL of anhydrous triethylamine as an acid-binding ...
Embodiment 3
[0068] The ring-crosslinked polyphosphazene is applied to the surface modification of polyethylene materials. This example is implemented under the conditions of implementation and technical requirements.
[0069] 1. The process of preparing polyphosphazene coating on polyethylene surface:
[0070] 1) Buy a polyethylene board and keep it as a spare.
[0071] 2) 4,4-dihydroxydiphenyl sulfone is used as a multifunctional monomer.
[0072] 3) Weigh 20mg of hexachlorocyclotriphosphazene and 43mg of 4,4‐dihydroxydiphenylsulfone, the molar ratio is (1:3), dissolve in 8mL of absolute ethanol, and disperse evenly by ultrasonic.
[0073] 4) Place the pre-prepared polyethylene in a clean glass petri dish, add the solution in step 3) into the petri dish, and ensure that the solution completely submerges the substrate.
[0074] 5) Add 200 μL of anhydrous triethylamine as an acid-binding agent, and cover the lid of the culture dish.
[0075] 6) Stir at room temperature for 2h to make it...
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