DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, TH | ko |
dc.contributor.author | Choi, SungMin | ko |
dc.contributor.author | Kline, SR | ko |
dc.date.accessioned | 2009-09-09T01:46:49Z | - |
dc.date.available | 2009-09-09T01:46:49Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2006-03 | - |
dc.identifier.citation | LANGMUIR, v.22, no.6, pp.2844 - 2850 | - |
dc.identifier.issn | 0743-7463 | - |
dc.identifier.uri | http://hdl.handle.net/10203/11088 | - |
dc.description.abstract | Stable rodlike nanoparticles with highly controlled surface charge density have been developed by the free radical polymerization of the mixture of polymerizable cationic surfactant, cetyltrimethylammonium 4-vinylbenzoate (CTVB), and hydrotropic salt sodium 4-styrenesulfonate (NaSS) in aqueous solution. The surface charge of the polymerized CTVB/NaSS rodlike nanoparticles was controlled by varying the NaSS concentration during the polymerization process, and the charge variation was interpreted in terms of the overcharging effect in colloidal systems. The SANS measurements show that the diameter of the polymerized CTVB/NaSS rodlike nanoparticles is constant at 4 nm and the particle length ranges from 24 to 85 nm, depending on the NaSS concentration. The polymerized particles are longest when the NaSS concentration is 5 mol % which corresponds to the charge inversion or neutral point. The SANS and zeta potential measurements show that the Coulomb interactions between the particles are strongly dependent on the NaSS concentration and the zeta potential of the polymerized CTVB/NaSS nanoparticles changes from positive to negative (+ 12.8 similar to -44.2 mV) as the concentration of NaSS increases from 0 to 40 mol %. As the NaSS concentration is further increased, the zeta potential is saturated at approximately -50 mV. | - |
dc.description.sponsorship | This work is supported by the Ministry of Science and Technology of Korea through the Basic Atomic Energy Research Institute (BAERI) program and the HANARO Utilization Project (M2-0411-00-0052), and the Ministry of Health and Welfare of Korea (0405-MN01-0604-007). This work utilized facilities supported in part by the National Science Foundation under Agreement No. DMR-0454672. We thank the HANARO for SANS beamtime supports and Dr. Y. S. Han for technical assistance during SANS measurements. | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | CATIONIC SURFACTANT | - |
dc.subject | MICELLES | - |
dc.subject | COUNTERION | - |
dc.subject | MACROION | - |
dc.subject | VESICLES | - |
dc.subject | MODEL | - |
dc.subject | SHAPE | - |
dc.subject | SIZE | - |
dc.title | Polymerized rodlike nanoparticles with controlled surface charge density | - |
dc.type | Article | - |
dc.identifier.wosid | 000236009900067 | - |
dc.identifier.scopusid | 2-s2.0-33645542890 | - |
dc.type.rims | ART | - |
dc.citation.volume | 22 | - |
dc.citation.issue | 6 | - |
dc.citation.beginningpage | 2844 | - |
dc.citation.endingpage | 2850 | - |
dc.citation.publicationname | LANGMUIR | - |
dc.identifier.doi | 10.1021/la052949a | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Choi, SungMin | - |
dc.contributor.nonIdAuthor | Kim, TH | - |
dc.contributor.nonIdAuthor | Kline, SR | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | CATIONIC SURFACTANT | - |
dc.subject.keywordPlus | MICELLES | - |
dc.subject.keywordPlus | COUNTERION | - |
dc.subject.keywordPlus | MACROION | - |
dc.subject.keywordPlus | VESICLES | - |
dc.subject.keywordPlus | MODEL | - |
dc.subject.keywordPlus | SHAPE | - |
dc.subject.keywordPlus | SIZE | - |
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