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DC Field | Value | Language |
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dc.citation.endPage | 1875 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 1868 | - |
dc.citation.title | MACROMOLECULES | - |
dc.citation.volume | 24 | - |
dc.contributor.author | FRANTZ, P | - |
dc.contributor.author | LEONHARDT, DC | - |
dc.contributor.author | GRANICK, S | - |
dc.date.accessioned | 2023-12-22T13:08:25Z | - |
dc.date.available | 2023-12-22T13:08:25Z | - |
dc.date.created | 2020-08-07 | - |
dc.date.issued | 1991-04 | - |
dc.description.abstract | Competitive adsorption was studied of deuteriopolystyrene (PS), protio PS, and carboxylic acid terminated PS, from cyclohexane solutions (0.05 or 0.1 mg mL-1) onto a single surface of silicon oxide at 30.0-degrees-C. Surface excess mass of the polymer was measured by infrared spectroscopy in the mode of attenuated total reflection. In competitive adsorption using a family of polymer fractions, preferential adsorption was observed of the deuterio (versus protio) isotopes and of the carboxylic acid terminated (versus hydrogen-terminated) chains. From considerations of relative enthalpic and entropic tendencies toward adsorption, it was concluded that (a) the magnitude of the differential sticking enthalpy (deuterio versus protio isotope) was almost-equal-to 80 J mol-1 (0.03 kT) per polystyrene repeat unit and (b) the magnitude of the differential sticking enthalpy (carboxylic acid terminated versus hydrogen-terminated chain) was almost-equal-to 1.6 x 10(4) J mol-1 (6.4 kT) per carboxylic acid end group. The implications of these findings for competitive adsorption when samples contain traces of polar impurities (for example, of oxidation impurities) are discussed quantitatively. | - |
dc.identifier.bibliographicCitation | MACROMOLECULES, v.24, no.8, pp.1868 - 1875 | - |
dc.identifier.doi | 10.1021/ma00008a026 | - |
dc.identifier.issn | 0024-9297 | - |
dc.identifier.scopusid | 2-s2.0-0026140759 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/47508 | - |
dc.identifier.url | https://pubs.acs.org/doi/abs/10.1021/ma00008a026 | - |
dc.identifier.wosid | A1991FG75000026 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | ENTHALPIC EFFECTS IN COMPETITIVE POLYMER ADSORPTION - ADSORPTION ISOTOPE EFFECT AND CHAIN END EFFECT | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | MONODISPERSE POLYSTYRENE | - |
dc.subject.keywordPlus | DISPLACEMENT ADSORPTION | - |
dc.subject.keywordPlus | THETA-TEMPERATURE | - |
dc.subject.keywordPlus | POROUS-GLASS | - |
dc.subject.keywordPlus | SILICA | - |
dc.subject.keywordPlus | KINETICS | - |
dc.subject.keywordPlus | SURFACE | - |
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