Abstract
The interaction of hydrolysable lead ions with a thermosensitive, anionic microgel dispersion of N-isopropylacrylamide modified with acrylic acid comonomer has been investigated as a function of pH. The conformation of the anionic microgel was observed by dynamic light scattering to reversibly alter due to changes in either temperature or pH, or due to the presence of lead ions. The hydrodynamic diameter of the microgel particles increases with increasing pH. However, upon increasing the temperature or in the presence of Pb (II) at pH 5, the hydrodynamic diameter decreases. The adsorption behavior of hydrolysable metal ions at the microgel-solution interface as a function of pH were investigated using adsorption isotherms and electrophoretic mobility measurements. Adsorption, and desorption, of Pb (II) on to the microgel surface is dependent upon the lead hydrolysis products and, to a lesser extent, the surface properties of the microgel. Lead ion adsorption was also demonstrated to be completely reversible by pH adjustment but temperature manipulation had minimal effect.
Preview
Unable to display preview. Download preview PDF.
References
Encyclopedia of Chemical Technology (1984), Vol 24, 3rd edn. Wiley, New York, pp 387–403
Snowden MJ, Thomas D, Vincent B (1993) Analyst 118:1367
Martin J (1995) BSc thesis. University of Bristol, England
Goodwin JW, Hearn J, Ho, CC, Ottewill RH (1973) Brit Polym J 5:347
Pelton RH, Chibante P (1986) Colloids and Surfaces 20:247
Murray M, Snowden MJ (1995) Adv Colloid Interface Sci 54:73
Sawai T, Yamazaki S, Ikariyama Y, Aizawa M (1991) Macromolecules 24:2117
Pelton RH, Pelton HM, Morphesis A, Rowell RL (1989) Langmuir 5:816
Snowden MJ, Vincent B (1992) J Chem Soc Chem Commun 1103
Snowden MJ, Chowdry BZ, Vincent B, Morris GE (1996) Faraday Trans, in press
Hohl H, Stumm W (1976) J Colloid Interface Sci 55:281
Stumm W, Morgan JJ (1996) Aquatic Chemistry. Wiley, New York
Morawetz H (1965) Macromolecules in Solution. Interscience, New York
James RO, Healy TW (1972) J Colloid Interface Sci 40:42
Hunter RJ (1981) Zeta Potential in Colloid Science, Principles and Applications. Academic Press, London
Crawford RJ, Harding IH, Mainwaring DE (1993) Langmuir 9:3050
James RO, Healy TW (1972) J Colloid Interface Sci 40:53
James RO, Healy TW (1972) J Colloid Interface Sci 40:65
Miller JF, Schätzel K, Vincent B (1991) J Colloid Interface Sci 143:532
CRC Handbook of Chemistry and Physics (1994), 75th edn, Lide DR (ed) Boca Raton, pp 8–45
Tanford C (1967) Physical Chemistry of Macromolecules. Wiley, New York
Morris GE, Snowden MJ, Vincent B (1996) paper in preparation
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1997 Steinkopff Verlag
About this paper
Cite this paper
Morris, G.E., Vincent, B., Snowden, M.J. (1997). The interaction of thermosensitive, anionic microgels with metal ion solution species. In: Rosenholm, J.B., Lindman, B., Stenius, P. (eds) Trends in Colloid and Interface Science XI. Progress in Colloid & Polymer Science, vol 105. Steinkopff. https://doi.org/10.1007/BFb0110955
Download citation
DOI: https://doi.org/10.1007/BFb0110955
Published:
Publisher Name: Steinkopff
Print ISBN: 978-3-7985-1086-9
Online ISBN: 978-3-7985-1660-1
eBook Packages: Springer Book Archive