Relationships of Component and Composition with Inhibition Abilities of Copolymers Composed of Acrylic Acid and Acrylamide on Corrosion of Mild Steel in Cooling Water Systems

DOI Web Site 7 References
  • Sekine Isao
    Fuculty of Science and Technology, Science University of Tokyo Institute of Colloid and Interface Science, Science University of Tokyo
  • Yuasa Makoto
    Fuculty of Science and Technology, Science University of Tokyo Institute of Colloid and Interface Science, Science University of Tokyo
  • Iida Tomohiro
    Fuculty of Science and Technology, Science University of Tokyo
  • Shibata Yoshiaki
    Japan Organo Corp.
  • Murata Hiromichi
    Japan Organo Corp.

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Other Title
  • 冷却水系におけるアクリル酸/アクリルアミド系共重合体の成分組成と腐食抑制能の相関
  • レイキャクスイケイ ニ オケル アクリルサン アクリルアミドケイ キョウジュウ

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Abstract

Copolymers composed of the acrylic acid (AA) and acrylamide (AAm) derivatives were synthesized and these inhibition effects on corrosion of steels were investigated in cooling water systems. In particular, the relationship between the component and composition, and the inhibition ability of the copolymers was discussed. In a high concentrated solution, the copolymers at AA/AAm molar ratio of 5/1 showed the most effective as inhibitors. In the substituent effect of amido group (-CONR2), the inhibition ability of the copolymer increased in the order of (R=)H (acrylamide: AAm)<CH3 (dimethyl acrylamide: DMAAm)<C2H5 (diethylacrylamide: DEAAm). In low and high concentrated solutions, the copolymer at number average molecular weight of ca. 104 depressed strongly the corrosion of steel.

Journal

  • Zairyo-to-Kankyo

    Zairyo-to-Kankyo 46 (6), 373-377, 1997

    Japan Society of Corrosion Engineering

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