Absorption of ultrasonic waves in aqueous solutions of α-cyclodextrin with alkylpyridinium or alkyltrimethylammonium bromides

Downloads

Authors

  • A. BALCERZAK Institute of Fundamental Technological Research, Polish Academy of Sciences, Poland
  • R. PŁOWIEC Institute of Fundamental Technological Research, Polish Academy of Sciences, Poland
  • A. JUSZKIEWICZ Department of Chemistry, Jagiellonian University, Poland

Abstract

Measurements of the absorption coefficient, α/f2, of aqueous solutions of α-cyclodextrin with alkylpyridinium bromides CnH2n+1C5H4NBr or alkyltrimethylammonium bromides CnH2n+1N(CH3)3Br (n = 8, 10, 12), were carried out at 15, 25, 35 and 45°C in the concentration range 0.01 M to 0.04 M and frequency range 1 MHz to 150 MHz. The occurrence of two ultrasonic relaxation processes has been noted. The obtained results have been compared with data published previously for sodium alkyl sulfates.

References

[1] M.L. BENDER and M. KOMIYAMA, Cyclodextrin chemistry, Springer-Verlag, Berlin 1978.

[2] J. SZEJTLI, Cyclodextrins and their inclusion complexes, Akademiai Kiado, Budapest 1982.

[3] M. KOMIYAMA and M.L. BENDER, J. Am. Chem. Soc., 100, 2259 (1978).

[4] W. SAENGER, Angew. Chem., 19, 344 (1980).

Most read articles by the same author(s)

1 2 > >>