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Colloid and Polymer Science

, Volume 278, Issue 8, pp 757–763 | Cite as

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

  • M. Minagawa
  • Y. Okada
  • K. Nouchi
  • Y. Sato
  • F. Yoshii
ORIGINAL CONTRIBUTION

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.

Key words Isotactic polyacrylonitrile Canal polymerization Electron beam irradiation Structure properties relationships 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • M. Minagawa
    • 1
  • Y. Okada
    • 1
  • K. Nouchi
    • 1
  • Y. Sato
    • 2
  • F. Yoshii
    • 3
  1. 1.Department of Materials Science and Engineering, Faculty of Engineering, Yamagata University Yonezawa 992-8510, JapanJP
  2. 2.ACT Research Co. Ltd., Nagoya Branch Office, Nagoya 450–0002, JapanJP
  3. 3.Takasaki Radiation Chemistry Research Establishment, Japan Atomic Energy Research Institute, Takasaki 370-1292 JapanJP

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