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Synthesis and characterization of poly(N-tert-alkylmaleimide)s

1. Radical polymerization of N-tert-butylmaleimide leading to a less-flexible poly(substituted methylene)

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Abstract

N-tert-Butylmaleimide (tBMI) polymerized readily in the presence of a radical initiator in spite of its bulky N-substituent to give a high molecular weight and less-flexible poly(substituted methylene). From kinetic investigation for the polymerization of tBMI with 2,2′-azobisisobutyronitrile (AIBN) in benzene, it was revealed that the rate of polymerization (R p) was expressed as R p=k [AIBN]0.51[tBMI]1.4, and the overall activation energy was 99.6 kJ/mol. The high polymerization of tBMI was assumed to result from the decrease in the rate of bimolecular termination between rigid polymer radicals bearing a bulky substituent. The flexibility of the polymer chain was examined by the viscometric and light scattering methods, and the effect on the polymerization reactivity was discussed.

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Authors and Affiliations

  1. Department of Applied Chemistry, Faculty of Engineering, Osaka City University, Sugimoto, Sumiyoshi-ku, 558, Osaka, Japan

    Akikazu Matsumoto, Toru Kubota & Takayuki Otsu

Authors
  1. Akikazu Matsumoto
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  2. Toru Kubota
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  3. Takayuki Otsu
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Matsumoto, A., Kubota, T. & Otsu, T. Synthesis and characterization of poly(N-tert-alkylmaleimide)s. Polymer Bulletin 24, 459–466 (1990). https://doi.org/10.1007/BF00395565

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  • DOI: https://doi.org/10.1007/BF00395565

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