Surface Modification of Polypropylene Membrane by ${gamma}$ Irradiation Methods and their Solutes Permeation Behaviors

Shim, J. K.; Lee, S. H.; Kwon, O. H.; Lee, Y. M.; Nho, Y. C.

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자료유형: 학술대회자료

저자정보: Shim, J. K. (Department of Industrial Chemistry, College of Engineering, Hanyang University,) Lee, S. H. (Department of Industrial Chemistry, College of Engineering, Hanyang University,) Kwon, O. H. (Department of Industrial Chemistry, College of Engineering, Hanyang University,) Lee, Y. M. (Department of Industrial Chemistry, College of Engineering, Hanyang University,) Nho, Y. C. (Korea Atomic Energy Research Institute)

저널정보: 한국막학회 한국막학회 총회 및 학술발표회 한국막학회 1998년도 춘계 총회 및 학술발표회

발행연도: 1998.1

수록면: 99 - 101 (3page)

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1. Introduction : The conventional grafting polymerization technique requires chemically reactive groups on the surface as well as on the polymer chains. For this reason, a series of prefunctionalization steps are necessary for covalent grafting. The surface prefunctionalizational technique for grafting can be used to ionization radiation, UV, plasma, ion beam or chemical initiators. Of these techniques, radiation method is one of the useful methods because of uniform and rapid creation of active radical sites without catalytic contamination in grafted samples. If the diffusion of monomer into polymer is large enough to come to the inside of polymer substrate, a homogeneous and uniform grafting reaction can be carried out throughout the whole polymer substrate. Radiation-induced grafting method may attach specific functional moieties to a polymeric substrate, such as preirradiation and simultaneous irradiation. The former is irradiated at backbone polymer in vacuum or nitrogen gas and air, and then subsequent monomer grafting by trapped or peroxy radicals, while the latter is irradiated at backbone polymer in the presence of the monomer. Therefore, radiation-induced polymerization can be used to modification of the chemical and physical properties of the polymeric materials and has attracted considerable interest because it imparts desirable properties such as blood compatibility. membrane quality, ion excahnge, dyeability, protein adsorption, and immobilization of bioactive materials. Synthesizing biocompatible materials by radiation method such as preirradiation or simultaneous irradiation has often used $\gamma$-rays to graft hydrophilic monomers onto hydrophobic polymer substrates. In this work, in attempt to produce surfaces that show low levels of anti-fouling of bovine serum albumin(BSA) solutions, hydroxyethyl methacrylate(HEMA) was grafted polypropylene membrane surfaces by preirradiation technique. The anti-fouling effect of the polypropylene membrane after grafting was examined by permeation BSA solution.

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