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Water vapor permeability of biodegradable polymers

  • Randal Shogren
Article

Abstract

The water vapor transmission rates (WVTR) of several biodegradable polymers were evaluated to determine their suitability as water-resistant coatings and to understand WVTR better in terms of polymer structure. Values of WVTR at 25‡C ranged from 13 to 2900 g/m2 /day and increased in the order PHBV PLA (cryst.) PLA (amorph.) PCL Bionolle BAK 1095 CAP CA. Values of WVTR were positively correlated with higher polymer solubility parameters, lower crystallinities, and higher free volumes. Although the WVTR of biodegradable polymers are much higher than those of good barrier materials such as low-density polyethylene, they are sufficient for short-term (hours to days) protection of polysaccharide-based materials against water.

Key Words

Biodegradable coating laminate starch polyester 

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References

  1. 1.
    H. Koch, H. Roper, and R. Hopcke (1993)Roy. Soc. Chem. Spec. Publ. 134, 157–179.Google Scholar
  2. 2.
    C. L. Swanson, R. L. Shogren, G. F. Fanta, and S. H. Imam (1993)J. Environ. Polym. Degrad. 1, 155–166.CrossRefGoogle Scholar
  3. 3.
    J. M. Mayer and D. L. Kaplan (1994)Trends Polym. Sci. 2, 227–235.Google Scholar
  4. 4.
    R. Narayan (1994) in M. L. Fishman, R. B. Friedman, and S. J. Huang (Eds.),Polymers from Agricultural Coproducts, American Chemical Society, Washington, DC, pp. 2–28.Google Scholar
  5. 5.
    I. Tomka and S. Schmidlin (1990) PCT Int. Appl. WO 90/01043.Google Scholar
  6. 6.
    R. L. Shogren and J. W. Lawton (1996) U.S. Pat. Appl. Ser. No. 08/591, 923.Google Scholar
  7. 7.
    J. Kemmish and J. Montador (1994) PCT Int. Appl. WO 95/ 15260.Google Scholar
  8. 8.
    P. Gruber, J. Kolstad, C. Ryan, and M. Iwen (1993) PCT Int. Appl. WO 94/08090.Google Scholar
  9. 9.
    C. Bastioli, V. Bellotti, G. Romano, and M. Tosin (1991) PCT Int. Appl. WO 92/02363.Google Scholar
  10. 10.
    A. J. Wnuk, T. J. Koger, and T. A. Young (1993) U.S. Pat. 5,391,423.Google Scholar
  11. 11.
    F. S. Buehler, E. Schmid, and H. Schultze (1994) U.S. Pat. 5,346,936.Google Scholar
  12. 12.
    F. Haas, J. Haas, and K. Tiefenbacher (1994) PCT Int. Appl. WO 94/13734.Google Scholar
  13. 13.
    R. T. Bogan and R. J. Brewer (1985) in H. F. Mark, N. M. Bikales, C. G. Overberger, G. Menges, and J. Kroschwitz (Eds.),Encyclopedia of Polymer Science and Technology, Vol. 3, Wiley, New York, p. 175.Google Scholar
  14. 14.
    H. Ishiguro and R. Tanaka (1995) Jpn. Kokai Tokyo Koho JP 07,173,442.Google Scholar
  15. 16.
    R. J. Ashley (1985) in J. Comyn (Ed.),Polymer Permeability, Elsevier, London, pp. 269–308.Google Scholar
  16. 17.
    G. Deeg (1947)Bell Lab. Record 25, 227–230.Google Scholar
  17. 18.
    W. A. Combellick (1985) in H. F. Mark, N. M. Bikales, C. G. Overberger, G. Menges, and J. Kroschwitz (Eds.),Encyclopedia of Polymer Science and Technology, Vol. 2, Wiley, New York, p. 180.Google Scholar
  18. 19.
    J. A. Barrie (1968) in J. Crank and G. S. Park (Eds.),Diffusion in Polymers, Academic, London, pp. 259–308.Google Scholar
  19. 20.
    Y. Yokota, R. Ishioka, Y. Moteki, and N. Watenabe (1994) in Y. Doi and K. Fukuda (Eds.),Biodegradable Plastics and Polymers, Elsevier, London, pp. 577–583.Google Scholar
  20. 21.
    Anonymous (1995) Biodegradable Thermoplastic BAK 1095 Product Brochure, Bayer Plastics Group.Google Scholar
  21. 22.
    J. Tsuji and Y. Ikada (1995)Polymer 36, 2709–2716.CrossRefGoogle Scholar
  22. 23.
    R. F. Fedors (1974)Polym. Eng. Sci. 14, 147–154.CrossRefGoogle Scholar
  23. 24.
    A. F. M. Barton (1983)CRC Handbook of Solubility Parameter and Other Cohesion Parameters, CRC Press, Boca Raton, FL, p. 296.Google Scholar
  24. 25.
    F. W. Billmeyer (1971)Textbook of Polymer Science, 2nd ed., Wiley Interscience, New York, p. 210.Google Scholar
  25. 26.
    J. D. Ferry (1980)Viscoelastic Properties of Polymers, 3rd ed., J. Wiley & Sons, New York, pp. 277–288.Google Scholar
  26. 27.
    M. Salame (1986)J. Plast. Film Sheet. 2, 321–325.Google Scholar
  27. 28.
    P. DeLassus (1991) in J. I. Kroschwitz (Ed.),Encyclopedia of Chemical Technology, Vol. 3, 4th ed., J. Wiley & Sons, New York, p. 948.Google Scholar
  28. 29.
    Y. Maeda and D. R. Paul (1987)J. Polym. Sci. Polym. Phys. 25, 1005–1016.CrossRefGoogle Scholar
  29. 30.
    J.-H. Guo (1993)Drug Dev. Ind. Pharm. 19, 1541–1555.CrossRefGoogle Scholar
  30. 31.
    J. J. Kesterand O. R. Fennema (1986)Food Technol. Dec., 47–59.Google Scholar
  31. 32.
    W. H. Charch (1935) U.S. Pat. 1,997,857.Google Scholar
  32. 33.
    R. L. Shogren (1992)Carbohydr. Polym. 19, 83–90.CrossRefGoogle Scholar
  33. 34.
    A. R. Kirby, S. A. Clark, R. Parker, and A. C. Smith (1993)J. Mater. Sci. 28, 5937–5942.CrossRefGoogle Scholar

Copyright information

© Plenum Publishing Corporation 1997

Authors and Affiliations

  • Randal Shogren
    • 1
  1. 1.U.S. Department of AgriculturePlant Polymer Research Unit, National Center for Agricultural Utilization Research, Agricultural Research ServicePeoria

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