PAAm-Kappa Carrageenan Composites: Drying and Swelling with Various Kappa Carrageenan Contents

• Authors: G. Akin Evıngür , Ö. Pekcan
• Languages of publication: EN

Abstracts

EN

The purpose of this study is to discuss the role of kappa-carrageenan (κ-car) in the drying and swelling of polyacrylamide (PAAm)-κ-car composite. The fluorescence intensity of pyranine increased and decreased as drying and swelling time were increased respectively for all samples. The desorption coefficient, D_{d}, decreased as κ-car contents were increased for a given temperature during drying. However, cooperative diffusion coefficient, D_{s}, increased as κ-car contents were increased during swelling at a given temperature.

Keywords

EN

82.35.Lr; 83.80.Kn; 87.15.Vv; 87.15.Zg; 87.64.kv

Discipline

• 83.80.Kn: Physical gels and microgels
• 82.35.Lr: Physical properties of polymers
• 87.15.Vv: Diffusion
• 87.64.kv: Fluorescence
• 87.15.Zg: Phase transitions

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 1
• Pages: 169-171

Dates

published

2012-01

Contributors

author

G. Akin Evıngür

• Piri Reis University, 34940 Tuzla, İstanbul, Turkey

author

Ö. Pekcan

• Kadir Has University, 34083, Cibali, İstanbul, Turkey

References

• 1. R. Meena, K. Prasad, G. Mehta, A.K. Siddhanta, J. Appl. Polym. Sci. 102, 5144 (2006)
• 2. G.R. Bardajee, A. Pourjavadi, N. Sheikh, M.S. Amini-Fazl, Radiat. Phys. Chem. 77, 131 (2008)
• 3. J.B. Birks, Photophysics of Aromatic Molecules, Wiley, Interscience, New York 1971
• 4. J. Crank, The Mathematics of Diffusion, Clarendon Press, Oxford 1975
• 5. Y. Li, T. Tanaka, J. Chem. Phys. 92, 1365 (1990)
• 6. D. Kaya Aktaş, G.A. Evingur, Ö. Pekcan, J. Biomol. Struct. Dynam. 24, 83 (2006)

Identifiers

DOI

10.12693/APhysPolA.121.169