DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chi, YS | ko |
dc.contributor.author | Lee, JK | ko |
dc.contributor.author | Lee, S | ko |
dc.contributor.author | Choi, Insung | ko |
dc.date.accessioned | 2009-11-19T06:42:30Z | - |
dc.date.available | 2009-11-19T06:42:30Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2004-04 | - |
dc.identifier.citation | LANGMUIR, v.20, no.8, pp.3024 - 3027 | - |
dc.identifier.issn | 0743-7463 | - |
dc.identifier.uri | http://hdl.handle.net/10203/12921 | - |
dc.description.abstract | Water wettability Of Si/SiO2 surfaces was controlled by the formation of SAMs terminating in 1-alkyl-3-(3-silylpropyl)imidazolium ions and the anion exchange on the surfaces ("direct anion exchange"). The exchange was confirmed by X-ray photoelectron spectroscopy, and the water wettability was measured as a water contact angle by contact angle goniometry. We found that anions played a great role in determining water wettability Of Si/SiO2 surfaces. For example, water contact angles Of Si/SiO2 surfaces presenting 1-methyl-3-(3-silylpropyl)imidazolium ions changed from 28 to 42degrees when the counteranion Cl- was exchanged with PF6- In addition to the anions, the N-alkyl groups of imidazolium cations were also found to be important in determining water wettability: we did not observe any significant changes in the contact angles of Si/SiO2 surfaces presenting 1-butyl-3-(3-silylpropyl)imidazolium ions by the anion exchange. We also demonstrated that the reaction rate of the direct anion exchange was affected by a choice of solvents: the anion exchange from Cl- to PF6- was the fastest in an aqueous solution. | - |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | SELF-ASSEMBLED MONOLAYERS | - |
dc.subject | IONIC LIQUIDS | - |
dc.subject | ORGANIC-SURFACES | - |
dc.subject | CATALYSIS | - |
dc.subject | POLYMERS | - |
dc.subject | FILMS | - |
dc.subject | GOLD | - |
dc.subject | HEXAFLUOROPHOSPHATE | - |
dc.subject | CHEMISTRY | - |
dc.subject | CRYSTALS | - |
dc.title | Control of wettability by anion exchange on Si/SiO2 surfaces | - |
dc.type | Article | - |
dc.identifier.wosid | 000220750300007 | - |
dc.identifier.scopusid | 2-s2.0-2342418879 | - |
dc.type.rims | ART | - |
dc.citation.volume | 20 | - |
dc.citation.issue | 8 | - |
dc.citation.beginningpage | 3024 | - |
dc.citation.endingpage | 3027 | - |
dc.citation.publicationname | LANGMUIR | - |
dc.identifier.doi | 10.1021/la036340q | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Choi, Insung | - |
dc.contributor.nonIdAuthor | Chi, YS | - |
dc.contributor.nonIdAuthor | Lee, JK | - |
dc.contributor.nonIdAuthor | Lee, S | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | SELF-ASSEMBLED MONOLAYERS | - |
dc.subject.keywordPlus | IONIC LIQUIDS | - |
dc.subject.keywordPlus | ORGANIC-SURFACES | - |
dc.subject.keywordPlus | CATALYSIS | - |
dc.subject.keywordPlus | POLYMERS | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | GOLD | - |
dc.subject.keywordPlus | HEXAFLUOROPHOSPHATE | - |
dc.subject.keywordPlus | CHEMISTRY | - |
dc.subject.keywordPlus | CRYSTALS | - |
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