Radical Copolymerization of Vinylidene Chloride with 3(2-Methyl)-6-methylpyridazinone in Several Solvents

Jun-Ichi Asakura 1st Department of Biochemistry, Kinki University School of Medicine, Sayama-cho Minamikawachi-gun, Osaka, 589, Japan

Masakuni Yoshihara Department of Applied Chemistry Faculty of Science and Engineering, Kinki University, Higashi-Osaka, Osaka, 577, Japan

Takaaki Shindo Department of Applied Chemistry Faculty of Science and Engineering, Kinki University, Higashi-Osaka, Osaka, 577, Japan

Yoshio Matsubara Department of Applied Chemistry Faculty of Science and Engineering, Kinki University, Higashi-Osaka, Osaka, 577, Japan

Toshihisa Maeshima Department of Applied Chemistry Faculty of Science and Engineering, Kinki University, Higashi-Osaka, Osaka, 577, Japan

Abstract

The radical copolymerization of vinylidene chloride (Vc, M₁) with 3(2-methyl)-6-methylpyridazinone (I, M₂) was carried out in benzene, ethanol, phenol, and acetic acid at 60 and 80°C. The monomer reactivity ratios were found to vary with the reaction conditions. The linear correlationships were obtained by plotting the values of log r₁ against those of ^VC[dbnd]O and ^VC[dbnd]C of monomers determined in the solvents.

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Radical Copolymerization of Vinylidene Chloride with 3(2-Methyl)-6-methylpyridazinone in Several Solvents

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Radical Copolymerization of Vinylidene Chloride with 3(2-Methyl)-6-methylpyridazinone in Several Solvents

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