PVCへの温度応答性ゲルの放射線グラフト重合

概要

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温度応答性ハイドロゲル材料であるN-イソプロピルアクリルアミド(NIPAAm)の温度応答の機能性を損なうことなく力学的強度を向上させるために，同時照射放射線重合法による汎用材料との複合化を試みた。NIPAAmは水溶液中で効率良く放射線重合し，ポリ塩化ビニル(PVC)フィルム表面に結合した。得られたグラフトフイルムを洗浄してもPVCに結合したNIPAAm部位は除去されず， PVCに温度応答変形作用が付与できることがわかった。Hybridization of a thermo-responsive N-isopropylacrylamide (NIPAAm) hydrogel with poly (vinyl chloride) (PVC) has been studied in order to improve its mechanical property without compensation for its functionality. In this study, a simultaneous radiation grafting method was applied to the hybridization. In an aqueous solution containing NIPAAm monomers without contacting to PVC, effective radiation-induced polymerization of NIPAAm was achieved. In the presence of a PVC film, graft polymers composed of PVC and NIPAAm was obtained. The graft polymers manifested the thermo-responsive deformation repeatedly.
2003-01-15