Saponification of Polymethylacrylate

DOI 2 Citations

Bibliographic Information

Other Title
  • ポリアクリル酸メチルの鹸化反応
  • I. Influence of Solvents on the Rate of Saponification
  • 第1報溶剤の影響

Description

Saponification of polymethylacrylate (PMA) was carried out at 40°C with sodium hydroxide in binary mixtures of various compositions of water-acetone. In comparison to it methyl propionate, methyl isobutyrate and dimethyl glutarate were also studied. The initial rate of saponification of PMA is scarcely influenced by the composition of the medium but its value is much less than that of the low molecular esters of the similar structure. In acetone rich systems the apparent rate constant of saponification increases with the increasing degree of saponification, whereas in water rich systems it decreases. Dimethyl glutarate shows similar behaviour but the change of the rate constant is small. Some discussious are given from the stand point of view that repulsion or adsorption of the catalyst takes place by COO- or COONa groups.

Journal

  • Kobunshi Kagaku

    Kobunshi Kagaku 13 (136), 355-361, 1956

    The Society of Polymer Science, Japan

Citations (2)*help

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Details 詳細情報について

  • CRID
    1390282681495746816
  • NII Article ID
    130003835201
  • DOI
    10.1295/koron1944.13.136_355
  • ISSN
    18848079
    00232556
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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