Abstract
Radiation grafting is shown to be a method with considerable research and industrial potential for the insolubilization of a wide range of organic reagents on polymer surfaces. The principle of the method is outlined in detail and involves radiation-induced copolymerization of a monomer containing an appropriate functional group to a polymer, then attachment of the reagent by subsequent chemical reactions. The relative merits of the two relevant grafting methods for this purpose, namely pre-irradiation and the mutual technique, are evaluated. Typical experimental procedures for each method are discussed. The mutual technique is shown to be more satisfactory for insolubilization reactions because of the lower radiation doses needed to achieve a particular percentage graft, resulting in less radiation damage to the backbone polymer. Variables influencing the efficiency of the mutual grafting method are reviewed, including solvent, dose rate, and dose. Additives for optimizing the grafting yield and properties are considered, including mineral acid and polyfunctional monomers. Methods for reducing competing homopolymerization are summarized. Three examples of the application of the mutual radiation grafting technique for insolubilization reactions are discussed in detail. These include immobilization of enzymes, heterogenization of catalytically active homogeneous metal complexes, and the anchoring of analytical reagents to form ion exchange resins.
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© 1985 Plenum Press, New York
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Ang, C.H., Garnett, J.L., Levot, R.G., Long, M.A. (1985). Application of Radiation Grafting in Reagent Insolubilization. In: Gebelein, C.G., Carraher, C.E. (eds) Bioactive Polymeric Systems. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-0405-1_10
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DOI: https://doi.org/10.1007/978-1-4757-0405-1_10
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