Infrared Spectroscopic Analysis of Sub-Monolayer Perfluoropolyether Films Based on the —[(CF2)nO]– Monomer Unit for n = 2, 3 and 4
Infrared specular reflection spectra of the TA-30, D-4OH and C4-4OH perfluoropolyether liquid films on gold substrates are simulated and studied experimentally. The simulated spectra were obtained using a classical dispersion analysis coupled with solutions of Maxwell's equations for transm...
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Japanese Society of Tribologists
2014
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oai:doaj.org-article:fd6419d83a1d4a6492d8877d8987650e2021-11-05T09:23:33ZInfrared Spectroscopic Analysis of Sub-Monolayer Perfluoropolyether Films Based on the —[(CF2)nO]– Monomer Unit for n = 2, 3 and 41881-219810.2474/trol.9.51https://doaj.org/article/fd6419d83a1d4a6492d8877d8987650e2014-04-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/trol/9/2/9_51/_pdf/-char/enhttps://doaj.org/toc/1881-2198Infrared specular reflection spectra of the TA-30, D-4OH and C4-4OH perfluoropolyether liquid films on gold substrates are simulated and studied experimentally. The simulated spectra were obtained using a classical dispersion analysis coupled with solutions of Maxwell's equations for transmission and reflection of electromagnetic radiation. The simulated spectra, which are based on a randomly oriented sample, provide excellent fits for the perfluoropolyethers over a wide film thickness range. Spectroscopic data are provided for TA-30, D-4OH and C4-4OH. The differences in the transverse and longitudinal optical IR spectra are discussed for off-normal reflection spectra in the thin film limit. Corrections to the IR reflection spectra for sub-monolayer coverage using effective medium theory are also discussed.Robert J. WaltmanJapanese Society of Tribologistsarticleperfluoropolyethersinfrared spectroscopyspecular reflectionboundary lubricantsdispersion analysisab initio computational chemistryPhysicsQC1-999Engineering (General). Civil engineering (General)TA1-2040Mechanical engineering and machineryTJ1-1570ChemistryQD1-999ENTribology Online, Vol 9, Iss 2, Pp 51-62 (2014) |
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DOAJ |
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DOAJ |
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EN |
| topic |
perfluoropolyethers infrared spectroscopy specular reflection boundary lubricants dispersion analysis ab initio computational chemistry Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 |
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perfluoropolyethers infrared spectroscopy specular reflection boundary lubricants dispersion analysis ab initio computational chemistry Physics QC1-999 Engineering (General). Civil engineering (General) TA1-2040 Mechanical engineering and machinery TJ1-1570 Chemistry QD1-999 Robert J. Waltman Infrared Spectroscopic Analysis of Sub-Monolayer Perfluoropolyether Films Based on the —[(CF2)nO]– Monomer Unit for n = 2, 3 and 4 |
| description |
Infrared specular reflection spectra of the TA-30, D-4OH and C4-4OH perfluoropolyether liquid films on gold substrates are simulated and studied experimentally. The simulated spectra were obtained using a classical dispersion analysis coupled with solutions of Maxwell's equations for transmission and reflection of electromagnetic radiation. The simulated spectra, which are based on a randomly oriented sample, provide excellent fits for the perfluoropolyethers over a wide film thickness range. Spectroscopic data are provided for TA-30, D-4OH and C4-4OH. The differences in the transverse and longitudinal optical IR spectra are discussed for off-normal reflection spectra in the thin film limit. Corrections to the IR reflection spectra for sub-monolayer coverage using effective medium theory are also discussed. |
| format |
article |
| author |
Robert J. Waltman |
| author_facet |
Robert J. Waltman |
| author_sort |
Robert J. Waltman |
| title |
Infrared Spectroscopic Analysis of Sub-Monolayer Perfluoropolyether Films Based on the —[(CF2)nO]– Monomer Unit for n = 2, 3 and 4 |
| title_short |
Infrared Spectroscopic Analysis of Sub-Monolayer Perfluoropolyether Films Based on the —[(CF2)nO]– Monomer Unit for n = 2, 3 and 4 |
| title_full |
Infrared Spectroscopic Analysis of Sub-Monolayer Perfluoropolyether Films Based on the —[(CF2)nO]– Monomer Unit for n = 2, 3 and 4 |
| title_fullStr |
Infrared Spectroscopic Analysis of Sub-Monolayer Perfluoropolyether Films Based on the —[(CF2)nO]– Monomer Unit for n = 2, 3 and 4 |
| title_full_unstemmed |
Infrared Spectroscopic Analysis of Sub-Monolayer Perfluoropolyether Films Based on the —[(CF2)nO]– Monomer Unit for n = 2, 3 and 4 |
| title_sort |
infrared spectroscopic analysis of sub-monolayer perfluoropolyether films based on the —[(cf2)no]– monomer unit for n = 2, 3 and 4 |
| publisher |
Japanese Society of Tribologists |
| publishDate |
2014 |
| url |
https://doaj.org/article/fd6419d83a1d4a6492d8877d8987650e |
| work_keys_str_mv |
AT robertjwaltman infraredspectroscopicanalysisofsubmonolayerperfluoropolyetherfilmsbasedonthemdashcf2nondashmonomerunitforn23and4 |
| _version_ |
1718444387238674432 |