Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 손대원 | - |
dc.date.accessioned | 2016-11-02T01:09:01Z | - |
dc.date.available | 2016-11-02T01:09:01Z | - |
dc.date.issued | 2015-04 | - |
dc.identifier.citation | JOURNAL OF COLLOID AND INTERFACE SCIENCE, v. 443, Page. 8-12 | en_US |
dc.identifier.issn | 0021-9797 | - |
dc.identifier.issn | 1095-7103 | - |
dc.identifier.uri | http://www.sciencedirect.com/science/article/pii/S002197971400928X | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/24063 | - |
dc.description.abstract | This paper introduces a new approach for preparing magnetic colloidal suspensions with electrostatic repulsion between particles and polyelectrolyte surfactants. The surface charge of the iron oxide particles was positive in acidic aqueous conditions; however the surface charge of the colloid was negative in basic aqueous conditions due to the amphoteric property of Fe2O3. The long-term colloidal stability and particle distribution of the multivalent charged polymers, Poly(4-vinylbenzenesulfonate sodium salt) (PSS), Poly(acrylic acid) (FAA), and Poly(allylamine hydrochloride) (PAH) were compared with the monovalent surfactant sodium dodecyl sulfate (SOS). Both mono- and multivalent surfactant molecules showed good colloidal stability for extended periods of time. However, the particle distribution was dependent on the hydrophobicity of the surfactants' functional groups. Polyelectrolytes with a negatively charged functional group showed good long-term stability of particles and a narrow particle distribution regardless of the acid dissociation constant (pK(a)) of the polymer. (C) 2014 Elsevier Inc. All rights reserved. | en_US |
dc.description.sponsorship | This work was supported by a National Research Foundation of Korea (NRF: 2012M2A2A6035933) grant funded by the Korean government (MEST). | en_US |
dc.language.iso | en | en_US |
dc.publisher | ACADEMIC PRESS INC ELSEVIER SCIENCE | en_US |
dc.subject | Magnetic particle | en_US |
dc.subject | Iron oxide | en_US |
dc.subject | Polyelectrolyte | en_US |
dc.subject | Polymer surfactant | en_US |
dc.subject | Colloidal stability | en_US |
dc.title | Colloidal stability of iron oxide nanoparticles with multivalent polymer surfactants | en_US |
dc.type | Article | en_US |
dc.relation.volume | 443 | - |
dc.identifier.doi | 10.1016/j.jcis.2014.11.068 | - |
dc.relation.page | 8-12 | - |
dc.relation.journal | JOURNAL OF COLLOID AND INTERFACE SCIENCE | - |
dc.contributor.googleauthor | Choi, Young-Wook | - |
dc.contributor.googleauthor | Lee, Hoik | - |
dc.contributor.googleauthor | Song, Youngjun | - |
dc.contributor.googleauthor | Sohn, Daewon | - |
dc.relation.code | 2015000945 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF CHEMISTRY | - |
dc.identifier.pid | dsohn | - |
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