Stabilization mechanism of colloidal suspensions by gum tragacanth: The influence of pH on stability
dc.contributor.author | Yokoyama, A. | en_US |
dc.contributor.author | Srinivasan, Keeran R. | en_US |
dc.contributor.author | Fogler, H. Scott | en_US |
dc.date.accessioned | 2006-04-07T20:09:05Z | |
dc.date.available | 2006-04-07T20:09:05Z | |
dc.date.issued | 1988-11 | en_US |
dc.identifier.citation | Yokoyama, A., Srinivasan, K. R., Fogler, H. S. (1988/11)."Stabilization mechanism of colloidal suspensions by gum tragacanth: The influence of pH on stability." Journal of Colloid and Interface Science 126(1): 141-149. <http://hdl.handle.net/2027.42/27076> | en_US |
dc.identifier.uri | http://www.sciencedirect.com/science/article/B6WHR-4CX6XX6-B8/2/0ab8126fd71fb4848488b791c6dd7a3d | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/27076 | |
dc.description.abstract | An acidic polyelectrolyte, gum tragacanth (GT), was found to stabilize polystyrene latex particles due to a steric stabilization mechanism. The stability depends significantly on the pH of the solution. To elucidate the stabilization mechanism, a number of parameters, such as the adsorption isotherm, the zeta potential, and the conformation were measured as a function of pH. The adsorption isotherms showed that pH has little effect on the amount of GT adsorbed on the surface. Photon correlation spectroscopy studies showed that the steric layer thickness increases as pH decreases, demonstrating that the pH dependence of stability is attributed to the conformational change of GT with pH. Finally, the degree of dissociation of carboxyl groups of GT molecules (i.e., pH) has a significant effect on the flocculation behavior of latex particles and can be modulated to bring about spontaneous deflocculation of latex particles. | en_US |
dc.format.extent | 583821 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Elsevier | en_US |
dc.title | Stabilization mechanism of colloidal suspensions by gum tragacanth: The influence of pH on stability | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Materials Science and Engineering | en_US |
dc.subject.hlbsecondlevel | Chemistry | en_US |
dc.subject.hlbsecondlevel | Chemical Engineering | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Chemical Engineering, The University of Michigan, Ann Arbor, Michigan 48109, USA | en_US |
dc.contributor.affiliationum | Department of Chemical Engineering, The University of Michigan, Ann Arbor, Michigan 48109, USA | en_US |
dc.contributor.affiliationum | Department of Chemical Engineering, The University of Michigan, Ann Arbor, Michigan 48109, USA | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/27076/1/0000067.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/0021-9797(88)90108-7 | en_US |
dc.identifier.source | Journal of Colloid and Interface Science | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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