135 results about "Polymer adsorbent" patented technology

The invention relates to a preparation method of aminopyridine modified resin, which comprises the steps of allowing high polymer resin to swell in an organic solvent under backflow, adding an aminopyridine compound with a charge ratio of (1-7):1 to the high polymer resin, and an acid-binding agent at a mole ratio of (1-5):1 to the aminopyridine compound, allowing a mixed reaction system to react for 2-24h at 45-70 DEG C under a stirring condition to form the aminopyridine modified resin, separating, washing sequentially with water, alcohol, acetone and ether, and airing to form the aminopyridine modified resin of which a functional group content is 2.9-4.0mmol FG/g. The method is simple to operate, short in reaction time and convenient in preparation, and the modified resin can be independently used or filled as an adsorbing column, has good adsorbability for metal, particularly rhodium octanoate dimer in industrial waste water, and metal ions, particularly noble metal ions, and has important applications in environmental protection, analytical chemistry, metal ion extraction from waste liquid and the like.

The invention relates to a method for preparing an ion imprinting polymer by virtue of ultraviolet induced polymerization at room temperature and an application of the ion imprinting polymer, and belongs to the field of material preparation and separation technologies and environmental treatment. The ion imprinting polymer can be used as a solid phase extraction adsorbent for selectively and dynamically separating heavy metal ions in wastewater. The method provided by the invention comprises the following steps: introducing vinyl into the surface of a matrix material (Silica) by virtue of a two-step modification method to obtain Silica-APTS-AC at first; and synthesizing a core-shell type ion imprinting polymer adsorbent under ultraviolet irradiation at room temperature by taking the Silica-APTS-AC as a matrix, Co (II) as a template ion and benzophenone (BP) as a photoinitiator. The adsorption property of the adsorbent to Co (II) is investigated, and the adsorbent has a good separation effect in a room temperature environment, has a large adsorption capacity to Co (II), is high in selectivity and significant in separation effect and has more repeated use times. The invention provides a new type of method for selectively separating heavy metal elements (such as Co (II)) in an enrichment environment sample.