Structure and properties of Plasma-polymerized Pyridine Membrane Deposited on Flexible Poly- (vinyl chloride) Resin

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  • 軟質ポリ塩化ビニル表面におけるピリジンのプラズマ重合膜の構造と性質
  • ナンシツ ポリ エンカ ビニル ヒョウメン ニ オケル ピリジン ノ プラズマ

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Abstract

Morphological and structural features of plasma polymerized pyridine membrane deposited on flexible poly (vinyl chloride) surface were studied with their effects on the wettability and the diffusion characteristic of plasticizer. The surface treatment was carried out in a modified bell jar type reactor by activation of pyridine vapor with argon glow discharge plasma generated by external electrodes of 13.56 MHz. Scanning and transmission electron microscopic observations showed that plasma polymerized membrane enveloping small polymer particles was formed at the rate of 160Å/min in the standard operating condition of 0.2 Torr argon, 0.2 Torr pyridine and 50W. The ATR and ESCA spectra of the modified surface suggested the introduction of nitrile and carbonyl groups in the plasma polymer which brought about some increase in hydrophilicity. This increase had a good crrespondence to the polar component of surface tension evaluated by Kaelble's method with contact angle measurement. It was also found that the highly cross-linked membrane act as the barrier against leaching and migration of a plasticizer, di-2-ethylhexyl phthalate, into hexane and polystyrene, respectively.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 38 (10), 693-699, 1981

    The Society of Polymer Science, Japan

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