Application Of Imprinted Polymers Based On Silicon Materials In Textiles

As a new silicon material, it has also been applied to the preparation of imprinted polymers.

Hu et al. In order to enhance the selectivity and application ability of solid-phase microextraction, a novel molecularly imprinted polymer coated solid phase microextraction fiber was prepared by using multi-step copolymerization of tetracycline as the imprinted molecule on a silicon fiber with a diameter of CM and a diameter of M.

The imprinted polymer can be directly coupled with high performance liquid chromatography for the determination of tetracycline in complex samples, and has specific recognition properties for tetracycline in structural analogues, oxytetracycline, doxycycline and chloramphenicol.

Koster et al. Compared the adsorption properties of clenbuterol imprinted polymers and non imprinted polymers prepared on silicon fibers under various conditions.

As a solid phase microextraction agent, it is suitable for the analysis and determination of biological samples, and can selectively extract Karen Tero from human urine.

Silicon monolithic column has been developed rapidly as a chromatographic stationary phase. In recent years, an imprinted polymer is grafted on the surface of silicon monolithic column to improve the separation capacity of the column.

Yan was used to prepare molecularly imprinted polymer monolith on capillary electrochromatography column and capillary column. The capillary columns were evaluated by capillary electrochromatography and capillary liquid chromatography.

The imprinted polymer monolith can be used to separate imprinted molecules from isomers in a short period of time, with high column efficiency, good sensitivity and long service life.

Ou et al. Using S- S- and L- four hydrogen bar as molecularly imprinted molecules, a molecularly imprinted membrane was immobilized on the monolithic silica gel column and applied to the separation of chiral compounds in capillary electrochromatography and capillary liquid chromatography.

Under the optimal conditions, the raceme of imprinted molecules can be separated by min on the monolithic column with a length of 85CM.

Not only has good mechanical properties and thermal stability, but also has a wide variety of morphology. Therefore, molecularly imprinted polymers with molecular recognition function based on silicon materials have broad application prospects.

The molecularly imprinted polymers based on silica gel are mostly microspheres. After imprinted molecules on the surface of amino functionalized silica gel, the imprinted polymers are prepared by copolymerization with functional monomers and crosslinking agents. Then the silica gel and imprinted molecules are dissolved and removed by HF.

Because the pition state substance of hydrolysis reaction is used as the imprinted molecule, the active surface of the imprinted polymer has catalytic selective hydrolysis reaction, showing good catalytic activity.

Good mechanical properties and imprinted sites are located on the surface of the imprinted polymer or near the surface. Therefore, it can be used as an excellent chromatographic stationary phase and widely used in chromatographic separation.

Prasad and so on will be loaded on the surface of spherical silica gel.

As stationary phase, it shows high selectivity and adsorption capacity. It can selectively enrich and separate imprinted molecules in dilute aqueous solutions or drugs.

Chang et al. The thickness of the estradiol imprinted polymer is about nm. The polymer is grafted onto the surface of silica gel and used as stationary phase.

Compared with the structure analogue of estrone, the imprinted polymer has longer retention time for imprinted molecules and shows high specific recognition ability.

Suliz-ky and [5] have prepared L- phenylalanine aniline imprinted polymers on the surface of silica gel with graft initiator, and used as chromatographic stationary phase. The affinity of imprinted polymers has been characterized by high performance liquid chromatography.

It shows good adsorption and selectivity.