Vinyl Polymerization by Metal Complexes. XXXII. Formation of Glycolchitosan-Copper(II) Complex and the Initiation of Vinyl Polymerization by Using the Complex |
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| Authors: | Yoshiaki Inaki Masaaki Otsuru Kiichi Takemoto |
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| Institution: | Faculty of Engineering , Osaka University , Yamadakami, Suita , Osaka , Japan |
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| Abstract: | The formation of the water-soluble glycolchitosan-copper (II) complex was studied by ultraviolet and visible spectroscopy and by viscosity measurement. The structure of the polymer complex in question was found to change with pH value of the system. The glycolchitosan-copper (II) complex was active as a free-radical initiator for the polymerization of methyl methacrylate and acrylonitrile in the presence of carbon tetra- chloride. The maximum conversion was observed at neutral pH, and was influenced by the presence of neutral salts. Relation- ship between the activity of the polymer complex for initiating the polymerization and its structure was discussed. |
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