Skip to main content
SpringerLink
Log in

Fluorescence study on drying of ι-carrageenan gels at different temperatures prepared with various CaCl2 content

  • Original Paper
  • Published:
Polymer Bulletin Aims and scope Submit manuscript

Abstract

The influence of temperature and salt content on drying was investigated by using steady-state fluorescence (SSF) technique. Supporting gravimetric and volumetric measurements were also carried out during drying of gels at various temperatures. ι-Carrageenan gels were prepared with various CaCl2 content. Pyranine was introduced as a fluorescence probe during gel preparation. Apparent fluorescence intensity, I, was measured during in situ drying process at each temperature and it was observed that fluorescence intensity values decreased for all gel samples. A simple model consisting of Case II diffusion was used to produce the packing constants, k 0, for helixes. It was observed that k 0 increased as the drying temperature was increased. On the other hand at each temperature, it was seen that k 0 decreased as CaCl2 content was increased. Packing energies for drying processes were obtained from fluorescence, volumetric, and gravimetric measurements separately.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others

References

  1. Thomas WR (1999) Carrageenan. In: Imeson A (ed) Thickening and gelling agents for food. Aspen Publication, Gaithersburg, MA, pp 45–59

    Google Scholar 

  2. Piculell L (1995) Gelling carrageenans. In: Stephen AM (ed) Food polysaccharides and their applications. Marcel Dekker, New York, pp 205–244

    Google Scholar 

  3. Peters A, Candau SJ (1988) Kinetics of swelling of spherical and cylindrical gels. Macromolecules 21:2278–2282

    Article  CAS  Google Scholar 

  4. Zrinyi M, Rosta J, Horkay F (1993) Studies on the swelling and shrinking kinetics of chemically crosslinked disk-shaped poly(vinyl acetate) gels. Macromolecules 26:3097–3102

    Article  CAS  Google Scholar 

  5. Pekcan O, Kara S (2000) Lattice heterogeneities at various crosslinker contents—a gel swelling study. Polymer 41:8735–8739

    Article  CAS  Google Scholar 

  6. Picker KM (1999) Matrix tablets of carrageenans. II. Release behavior and effect of added cations. Drug Dev Ind Pharm 25:339–346

    Article  CAS  Google Scholar 

  7. Ciszkowska M, Guillaume MD (1999) Transport of ions and molecules in biopolymeric gels: electroanalytical studies. J Phys Chem A 103:607–613

    Article  CAS  Google Scholar 

  8. Rondeau-Mouro C, Zykwinska A, Durand S, Doublier J-L, Buleon A (2004) NMR investigations of the 4-ethyl guaicol self-diffusion in iota (iota)-carrageenan gels. Carbohydr Polym 57:459–468

    Article  CAS  Google Scholar 

  9. Masaro L, Zhu XX (1999) Physical models of diffusion for polymer solutions, gels and solids. Prog Polym Sci 24:731–775

    Article  CAS  Google Scholar 

  10. Hawlader MNA, Ho JC, Qing Z (1999) A mathematical model for drying of shrinking materials. Temperature and moisture distribution within materials undergoing shrinkage during drying. Dry Technol 17:27–47

    Article  Google Scholar 

  11. Miller E (2002) Investigation of drying silica gel by fluorescence methods. J Photochem Photobiol A 152:249–257

    Article  CAS  Google Scholar 

  12. Coumans WJ (2000) Models for drying kinetics based on drying curves of slabs. Chem Eng Process 39:53–68

    Article  CAS  Google Scholar 

  13. Pekcan O, Yilmaz Y (1996) Fluorescence method to study gelation swelling and drying processes in gels formed by solution free radical copolymerization. Prog Colloid Polym Sci 102:89–97

    Article  CAS  Google Scholar 

  14. Yilmaz Y, Pekcan O (1998) In situ fluorescence experiments to study swelling and slow release kinetics of disc-shaped poly(methyl methacrylate) gels made at various crosslinker densities. Polymer 39:5351–5357

    Article  CAS  Google Scholar 

  15. Erdogan M, Pekcan O (2000) Modeling of swelling by the fast transient fluorescence technique in a polymeric gel. J Polym Sci B 38:739–746

    Article  CAS  Google Scholar 

  16. Tari O, Pekcan O (2007) Swelling activation energy of κ-carrageenan in its gel state: a fluorescence study. J Appl Polym Sci 106:4164–4168

    Article  CAS  Google Scholar 

  17. Pekcan O, Kaya D, Erdogan M (2000) Fast transient fluorescence (FTRF) technique to study swelling of densely and loosely formed gels. J Appl Polym Sci 76:1494–1502

    Article  CAS  Google Scholar 

  18. Erdogan M, Pekcan O (2003) Swelling of heterogels in good solvents; a fast transient fluorescence study. Polymer 44:2129–2136

    Article  CAS  Google Scholar 

  19. Pekcan O, Erdogan M (2003) Drying of heterogels swollen in organic vapor. Compos Interfaces 10:547–566

    Article  CAS  Google Scholar 

  20. Enscore DJ, Hopfenberg HB, Stannett VT (1977) Effect of particle size on mechanism controlling normal-hexane sorption in glassy polystrene microsphere. Polymer 18:793–800

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Physics, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey

    Ozlem Tari

  2. Kadir Has University, Cibali, 34980, Istanbul, Turkey

    Onder Pekcan

Authors
  1. Ozlem Tari
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Onder Pekcan
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Onder Pekcan.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Tari, O., Pekcan, O. Fluorescence study on drying of ι-carrageenan gels at different temperatures prepared with various CaCl2 content. Polym. Bull. 66, 529–539 (2011). https://doi.org/10.1007/s00289-010-0362-2

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00289-010-0362-2

Keywords

Search

Navigation