Preparation And Characterization Of Phosphate/Polymer-based Molecular Imprinting Materials

Calcium phosphate was fabricated via templates method and silver-based phosphate was prepared by co-deposition means. Silver-based phosphate/PVC was prepared by mixing and melting the silver-based phosphate and PVC powder. Calcium alginate/calcium phosphate composite microspheres were fabricated via inverse suspension (W/O) with chloroform and hexane as dispersed phase, ethyl cellulose as disperser, mixture of calcium phosphate and sodium alginate solution as dispersing phase and calcium chloride solution as the cross-linker. Ion imprinted phosphate/polyvinyl chloride was prepared by stripping means. The phosphate/polymer-based materials were characterized as far as their structure is concerned.From the viewpoint of the interaction of microorganism and the silver-based antibacterial, the more reasonable estimate methods were proposed. The test results indicated that the TTC active coloration determination and flat cultivation bacteria account methods were suitable for the estimation of contact antibacterial.The Ag+ dissolve behavior of the silver-based phosphate/PVC was determined in the dissolve tests. The transplant disciplinarian of Ag+ in the silver-based phosphate/PVC was discussed and proposed.Surface molecular imprinted calcium phosphate/calcium alginate composite microspheres (CP/CA MICMs) were synthesized by using CP/CA CMs as the supporting matrix, ethylenetri(β-methoxy)ethyoxysilane (A-172) andγ-amidopropyltriethyoxysilane (KH-550) as the functional monomers and crosslinking agents,and methyl orange as template in aqueous solution. The capability of CP/CA MICMs was tested by ultraviolet spectrophotometer. The result showed that CP/CA MICMs adsorbed their templates in the way of Langmiur, and their adsorption properties were influenced by the functional monomer, the carriers and the ratio of the template to the functional monomer. The functional monomers were showed to combine the templates mainly through electrostatic and hydrophobic interactions in the water system. The CP/CA MICMs exhibited a specific recognition to their templates. These abilities of CP/CA MICMs were influenced by the functional monomers, the carriers, the ratio of the template to functional monomers and the specific areas of the MICMs.