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Crystallinity dependence of free-volume size and its distribution of ethylene-vinyl alcohol copolymer evaluated by positronium lifetime measurement

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Abstract

The size distribution of free-volume (<~0.1 nm3) of ethylene-vinyl alcohol copolymer with various crystalline degrees was estimated by positronium lifetime measurement. With increasing degree of crystallinity, the size distribution significantly narrowed and the intensity of positronium decreased. This indicates that the inhomogeneity reduces with the increase of the degree of crystallinity. It is found that the free-volume fraction estimated is reflected by the fraction of the amorphous region.

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References

  1. M. H. Cohen, D. Turnbull, J. Chem. Phys., 31 (1959) 1164.

    Google Scholar 

  2. M. Eldrup, D. Lightbody, J. N. Sherwood, J. Chem. Phys., 63 (1981) 51.

    Google Scholar 

  3. P. J. Flory, in: Principles of Polymer Chemistry, Cornell University Press, Ithaca, New York, 1953, p. 505.

    Google Scholar 

  4. H. Fujita, Fortsch. Hochpolym. Forsch., 3 (1961) 1.

    Google Scholar 

  5. N. Furusaki, Y. Ohko, Y. Ujihira, Kobunshi Ronbunshu, 50 (1993) 969 (in Japanese).

    Google Scholar 

  6. R. B. Gregory, in: CONTIN (PAL-2): A modification of CONTIN (Version 2) for the Determination of Positron Annihilation Lifetime Distributions. Kent State University, Kent, Ohio, 1993.

    Google Scholar 

  7. K. Ito, H. Nakanishi, Y. Ujihira, J. Phys. Chem., 103 (1999) 4555.

    Google Scholar 

  8. K. Ito, Y. Saito, T. Yamamoto, Y. Ujihira, K. Nomura, Macromolecules, 34 (2001) 6153.

    Google Scholar 

  9. K. Itoyama, J. Soc. Rheol. Japan, 29 (2001) 121 (in Japanese).

    Google Scholar 

  10. Y. C. Jean, Microchem. J., 42 (1990) 72.

    Google Scholar 

  11. P. Kirkegaard, N. J. Pederson, M. Eldrap, in: PATFIT-88: A Data-Processing System for Positron Annihilation Spectra on Mainframe and Personal Computers, Tech. Rep., Risø-M-2740, Risø National Laboratory, DK-4000 Roskilde, Denmark, 1989.

    Google Scholar 

  12. Y. Kobayashi, C. L. Wang, K. Hirata, W. Zheng, C. Zhang, Phys Rev., B58 (1998) 5384.

    Google Scholar 

  13. H. Nakanishi, S. J. Wang, Y. C. Jean, Microscopic surface tension studied by positron annihilation, in: S. C. SHARMA (Ed.), Positron Annihilation Studies of Fluids, World-Scientific, Singapore, 1988, p. 292.

    Google Scholar 

  14. S. J. Tao, J. Chem. Phys., 56 (1972) 5499.

    Google Scholar 

  15. Y. Y. Wang, H. Nakanishi, Y. C. Jean, T. C. Sandreczki, J. Polym. Sci., Part B: Polym. Phys. 28 (1990) 1431.

    Google Scholar 

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Authors and Affiliations

  1. Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan

    K. Ito, H.-L. Li, Y. Ujihira & K. Nomura

  2. Physics and Analysis Research Center, Central Research Laboratory, The Nippon Synthetic Chemical Industry Co., Ltd, 13-1, Muroyama 2-, chome, Ibaraki, Osaka, 567-0052, Japan

    Y. Saito, T. Yamamoto & Y. Nishihara

Authors
  1. K. Ito
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  2. H.-L. Li
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  3. Y. Saito
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  4. T. Yamamoto
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  5. Y. Nishihara
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  6. Y. Ujihira
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  7. K. Nomura
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Ito, K., Li, HL., Saito, Y. et al. Crystallinity dependence of free-volume size and its distribution of ethylene-vinyl alcohol copolymer evaluated by positronium lifetime measurement. Journal of Radioanalytical and Nuclear Chemistry 257, 191–193 (2003). https://doi.org/10.1023/A:1024738503198

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  • DOI: https://doi.org/10.1023/A:1024738503198

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