The Effect of Solvent on the Rate of Radical Polymerization of Styrene

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Other Title
  • スチレンのラジカル重合速度に対する溶媒効果
  • ラジカル反応における溶媒効果　ＶＩ　　スチレンのラジカル重合速度に対する溶媒効果

Description

The polymerization of styrene in various solvents was carried out at 30° C, under irradiation with the light of wave length 366 nm and by using 1, 1' -azobiscyclohexanecarbonitrile (ACN) as a photo-sensitizer. The rate of polymerization (Rp) increased in the following order with respect to solvents: cyclohexane < benzene < 1, 2-dichloroethane < chlorobenzene < benzonitrile < bromobenzene < 1, 2, 4-trichlorobenzene < o-dichlorobenzene < benzyl alcohol.<BR>The rate of initiation (R1) scarcely changed in these solvents, while the values of ktikp2 (=a) changed in them. The values of ktikp were obtained by means of rotating sector method, and the propagation rate constant (kp) and termination rate constant (kt) were derived on the basis of the values of kik, and ktIkp. The values of le, scarcely changed in these solvents, while those of kt markedly altered and were almost inversely proportional to the initial viscosity in this polymerization.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1978 (11), 1561-1564, 1978-11-10

    The Chemical Society of Japan

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