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Tacticity, molecular weight, and molecular-weight-distribution relationships in stereoregular polyacrylonitrile prepared by electron beam irradiation canal polymerization

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Abstract

The preparation and characterization of stereoregular isotactic polyacrylonitrile (PAN) by electron beam (EB) irradiation on a urea canal complex are described. The EB method has several advantages over the ordinary γ-ray irradiation method: a very short polymerization time is needed (within a few seconds) and EB irradiation is carried out intermittently, and so all the polymer properties can be studied as a function of the EB irradiation dose. The structure–properties relationships of PAN, such as intrinsic viscosity versus the number-average molecular weight and the viscosity versus the isotacticity range were clarified. Significant information for the optimization of the tacticity of PAN was extracted.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Faculty of Engineering, Yamagata University Yonezawa 992-8510, Japan, , , , , , JP

    M. Minagawa, Y. Okada & K. Nouchi

  2. ACT Research Co. Ltd., Nagoya Branch Office, Nagoya 450–0002, Japan, , , , , , JP

    Y. Sato

  3. Takasaki Radiation Chemistry Research Establishment, Japan Atomic Energy Research Institute, Takasaki 370-1292 Japan, , , , , , JP

    F. Yoshii

Authors
  1. M. Minagawa
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  2. Y. Okada
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  3. K. Nouchi
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  4. Y. Sato
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  5. F. Yoshii
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Received: 23 August 1999 Accepted : 10 January 2000

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Minagawa, M., Okada, Y., Nouchi, K. et al. Tacticity, molecular weight, and molecular-weight-distribution relationships in stereoregular polyacrylonitrile prepared by electron beam irradiation canal polymerization. Colloid Polym Sci 278, 757–763 (2000). https://doi.org/10.1007/s003960000305

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  • DOI: https://doi.org/10.1007/s003960000305

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