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Fibers and Polymers

, Volume 3, Issue 1, pp 1–7 | Cite as

Preparation of regenerated cellulose fiber via carbonation. I. Carbonation and dissolution in an aqueous NaOH solution

  • Sang Youn Oh
  • Dong Il Yoo
  • Younsook Shin
  • Wha Seop Lee
  • Seong Mu Jo
Article

Abstract

Cellulose carbonate was prepared by the reaction of cellulose pulp and CO2 with treatment reagents, such as aqueous ZnCl2 (20–40 wt%) solution, acetone or ethyl acetate, at −5–0°C and 30–40 bar (CO2) for 2 hr. Among the treatment reagents, ethyl acetate was the most effective. Cellulose carbonate was dissolved in 10% sodium hydroxide solution containing zinc oxide up to 3 wt% at −5–0°C. Intrinsic viscosities of raw cellulose and cellulose carbonate were measured with an Ubbelohde viscometer using 0.5 M cupriethylenediamine hydroxide (cuen) as a solvent at 20°C according to ASTM D1795 method. The molecular weight of cellulose was rarely changed by carbonation. Solubility of cellulose carbonate was tested by optical microscopic observation, UV absorbance and viscosity measurement. Phase diagram of cellulose carbonate was obtained by combining the results of solubility evaluation. Maximum concentration of cellulose carbonate for soluble zone was increased with increasing zinc oxide content. Cellulose carbonate solution in good soluble zone was transparent and showed the lowest absorbance and the highest viscosity. The cellulose carbonate and its solution were stable in refrigerator (−5°C and atmospheric pressure).

Keywords

Cellulose carbonate CO2 Sodium hydroxide solution Solubility Phase diagram 

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References

  1. 1.
    W. D. Bellamy,Biotechnol. Bioeng.,26, 869 (1974).CrossRefGoogle Scholar
  2. 2.
    A. E. Humphery in “Cellulose as a Chemical and Energy Resource”, (C. R. Wilkem Ed.), pp.49–65, Wiley, New York, 1975.Google Scholar
  3. 3.
    D. Fengel and G. Wegener, “Wood Chemistry”, pp.66–105, Walter de Gruyter, New York, 1989.Google Scholar
  4. 4.
    E. E. Treiber in “Cellulose Chemistry and its Applications”, (T. P. Nevell and S. H. Zeronian Eds.), Chap. 18, pp.455–479, Ellis Horwood Ltd., Chichester, UK, 1985.Google Scholar
  5. 5.
    R. W. Moncrieff, “Man-Made Fibers”, 6th ed., pp.162–299, Newnes Butterworths, London, 1975.Google Scholar
  6. 6.
    J. I. Kroschwitz, “Polymers: Fibers and Textiles, A Compendium”, pp.746–772, John Wiley Sons Inc., New York, 1990.Google Scholar
  7. 7.
    D. L. Johnson,G. B. Patent, 1144048 (1969).Google Scholar
  8. 8.
    N. E. Franks and J. K. Varga,U. S. Patent, 4145532 (1979).Google Scholar
  9. 9.
    T. Hongu and G. O. Philips, “New Fibers”, 2nd ed., pp. 196–201, Woodhead Publ. Ltd., Cambridge, 1997.Google Scholar
  10. 10.
    J. Brandrup and E. H. Immergut, “Polymer Handbook”, 4th ed., pp.V/144–147, Wiley-Interscience, New York, 1999.Google Scholar
  11. 11.
    G. F. Davidson,J. Text. Inst.,28, 27 (1937).CrossRefGoogle Scholar
  12. 12.
    Z. Jinping and Z. Lina,Polymer Journal,32, 866 (2000).CrossRefGoogle Scholar
  13. 13.
    C. Bergner and B. Phillip,Cellulose Chem. Technol.,20, 591 (1986).Google Scholar
  14. 14.
    B. Morgenstern and H. W. Kammer,Polymer Journal,40, 1299 (1999).CrossRefGoogle Scholar
  15. 15.
    H. Lang and I. Laskowski,Cellulose Chem. Technol.,25, 143 (1991).Google Scholar
  16. 16.
    K. Kamide, K. Okajima, K. Kowsawa, T. Matsui, S. Nomura, and K. Hikichi,Polymer Journal,17, 909 (1985).CrossRefGoogle Scholar
  17. 17.
    T. Yamashiki, K. Kamide, and K. Okajima in “Cellulose Sources and Exploitation”, (J. F. Kennedy and G. O. Phillips Eds.), pp.197–202, Ellis Horwood, London, 1990.Google Scholar

Copyright information

© The Korean Fiber Society 2002

Authors and Affiliations

  • Sang Youn Oh
    • 1
  • Dong Il Yoo
    • 1
  • Younsook Shin
    • 2
    • 1
  • Wha Seop Lee
    • 3
    • 1
  • Seong Mu Jo
    • 3
    • 1
  1. 1.Department of Textile EngineeringChonnam National UniversityKwangjuKorea
  2. 2.Department of Clothing and TextilesChonnam National UniversityKwangjuKorea
  3. 3.Polymer Hybrid Research CenterKorea Institute of Science and TechnologyCheongryang, SeoulKorea

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