Synthesis and Characterization of Poly(alkyl $\alpha$, L-glutamate-co-ethylene oxide)

  • Published : 2002.02.01

Abstract

Rod-coil amphiphilic block copolymers, PALG-PEOs, poly(alkyl $\alpha$, L-glutamate-co-ethylene oxide)s, were successfully synthesized in three steps: 1) esterification of L-glutamic acid, 2) synthesis of ${\gamma}$-alkyl L-gultamate N-carboxyanhydride, and 3) polymerization of NCA monomers. These molecules form polymeric micelles with the hydrophobic core and hydrophilic corona in aqueous solution, which were characterized by light scattering and static fluorescence measurement.

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References

  1. G. Duda and G. Wegner, Makromol. Chem., Rapid Commun., 9,495 (1988)
  2. D. K. Schwarz, R. Viswanathan, and J. A. Zasadzinski, Science, 257, 508 (1992)
  3. S. Lee. J. R. Dutcher, G. Stegeman, G. Duda, G. Wegner, and W. Knoll, Phys. Rev. Lett., 70, 2427 (1993)
  4. H. Block, Poly(y-benzyl-L-glutamate) and Other Glutamic Acid Containing Polymers, Gordon and Breach Science Publishers, New York, 1983
  5. D. S. Poche, W. H. Daly, and P. S. Russo, Macromolecules, 28, 6745 (1995)
  6. E. Dessipri, D. A. Tirrell, and E. D, T. Atkins, Macromolecules, 29, 3545 (1996)
  7. C. S. Cho, J. W. Nah, Y. I. Jeong, J. B. Cheon, S. Asayama, H. Ise, and T, Akaike, Polymer, 40, 6769 (1999)
  8. B. Fong and P. S. Russo, Langmuir; 15,4421 (1999)
  9. D. Wassermann and G. Garber, U.S. Patent 3,285,953 (1996)
  10. Y. Wang and M. A. Winnik, Langmuir, 6, 1437 (1990)
  11. K. Kalyanasundaram and J. K. Thomas, J. Am. Chem. Soc., 99, 2039 (1997)
  12. J. K. Thomas, Chem. Rev., 80, 283 (1980)