Polymers carrier components

Our studies on solvent-impregnated resins, consisting of soluble compounds of type IB impregnated onto macroporous polymer carriers, have enabled us to conclude that a hydrophilic or amphiphilic component must be present in the polymeric network, in order to allow for fast ion diffusion inside the polymeric matrix. It is imperative that this component possesses none or minimal metal-ligand properties, so that it will not interfere with the ion selectivity of the main chelating group [6,7]. 

Most polymer carriers per se do not possess the ability to recognize the target site. Consequently, biological macromolecules such as polysaccharides, antibodies, and toxin fragments are introduced into the polymer carrier as the directional component and to ensure the required selectivity. The functional groups of the polymer are usually modified or activated to effect coupling of the biomolecule (Table 5.9). 

In an RD process, two operations are coupled and run simultaneously. One operation is chemical synthesis and the other is separation by distillation, enabling a shift in composition to drive equilibrium-limited reactions to higher conversion. In this chapter we summarize some of our published papers and extend the work to other applications of polymer carrier composite materials and components. 

Fig. 8.22 Polymer/carrier materials and components and their fields of application...

Polyvinyl alcohol can form complexes with many components, and so it can detoxify organisms. It is apphed in low-molecular-weight form - below 15 000- and is voided from the organism through the kidney. In addition, it is also used as a polymer carrier for plant protection (herbicides and pesticides) [44],... 

Polymer composites of mbber-hydrogel are permeable for water-soluble low-molecular weight compounds in a swollen state. Therefore, it is suitable for dmg delivery carrier. Many papers have researched the basic role of composite morphology in low-molecular weight component transport through two-phase composites where only one phase played the main role. 

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