Abstract
The objective of this study is to examine an effectiveimmobilization method anchoring a thin functional plasmapolymer as a barrier material onto substrate’s surface forcontrolling drug-releasing behavior by a new composite LT-plasma treatment. The term ‘composite’ means combinationof two kinds of LT-plasma treatment, i.e. plasma polymer-ization and plasma-induced grafting. In general, a prerequisitefor introducing specific functional groups onto a substrate’ssurface requires an ability to make covalent bonds betweenthe substrates’ surface radicals and unsaturated carbon bondsof monomers. If such is the case, thin films deposited byplasma polymerization have merit for this purpose becausethey have surface radicals for further reactions, especiallythe grafting by unsaturated hydrocarbon monomers. As acandidate for a suitable monomer for this purpose, allylalcohol is presumed to play an essential role since it has acarbon double bond in its backbone and, in addition, ahydroxyl group responsible for hydrophilic character. In thiswork, the immobilization of allyl alcohol as a thin film-forming material with hydrophilic functionality onto cellu-lose surface as a substrate is investigated by the compositeplasma treatment, in which the cellulose surface is coatedfirst with thin film by allyl alcohol-plasma-polymer (AAPP)and then grafted with allyl alcohol polymer via covalentbond. Cellulose, (C
Published Version
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