Effect of poly(acrylic acid) end-group functionality on inhibition of calcium oxalate crystal growth
Wallace, Andrew D., Al-Hamzah, Ali , East, Chris P., Doherty, William O.S., & Fellows, Christopher M. (2010) Effect of poly(acrylic acid) end-group functionality on inhibition of calcium oxalate crystal growth. Journal of Applied Polymer Science, 116(2), pp. 1165-1171.
A number of series of poly(acrylic acids) (PAA) of differing end-groups and molecular weights prepared using atom transfer radical polymerization were used as inhibitors for the crystallization of calcium oxalate at 23 and 80°C. As measured by turbidimetry and conductivity and as expected from previous reports, all PAA series were most effective for inhibition of crystallization at molecular weights of 1500–4000. However, the extent of inhibition was in general strongly dependent on the hydrophobicity and molecular weight of the end-group. These results may be explicable in terms of adsorption/desorption of PAA to growth sites on crystallites. The overall effectiveness of the series didn't follow a simple trend with end-group hydrophobicity, suggesting self-assembly behavior or a balance between adsorption and desorption rates to crystallite surfaces may be critical in the mechanism of inhibition of calcium oxalate crystallization.
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|Item Type:||Journal Article|
|Keywords:||adsorption, atom transfer radical polymerization, crystallization, polyelectrolytes|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > MACROMOLECULAR AND MATERIALS CHEMISTRY (030300) > Macromolecular and Materials Chemistry not elsewhere classified (030399)
Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > OTHER CHEMICAL SCIENCES (039900) > Industrial Chemistry (039903)
|Divisions:||Past > Schools > Chemistry
Current > Research Centres > Centre for Tropical Crops and Biocommodities
Past > QUT Faculties & Divisions > Faculty of Science and Technology
|Copyright Owner:||Copyright 2010 Wiley Online|
|Deposited On:||02 Sep 2010 23:51|
|Last Modified:||29 Feb 2012 14:18|
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