Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Daimay Lin-Vien"'
Publikováno v:
SPIE Proceedings.
An IR microprobe application was developed to characterize the diffusion profiles of additives in polymers. The diffusion of Cyasorb UV531 in polypropylene was studied and concentration profiles, diffusion coefficients were obtained.© (1992) COPYRIG
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20a41e5a8a6bae3aa65a22d11392611e
https://doi.org/10.1117/12.56419
https://doi.org/10.1117/12.56419
The Raman analysis of nitroso alkanes is hampered by photolysis in many cases. Consequently, the vibrational studies of these compounds are often carried out with the infrared (IR) method either in the gas phase as transient species or by matrix isol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::181a1d83db5a77863aa62813cd37d937
https://doi.org/10.1016/b978-0-08-057116-4.50018-3
https://doi.org/10.1016/b978-0-08-057116-4.50018-3
Nitriles (C—CN), cyanamides (N—CN), cyanates (—O—CN), thiocyanates (—S—CN), selenocyanates (—Se—CN), and isocyanides (C—NC) are the commonly encountered compounds that contain —C≡N (or —N≡C) triple bonds. These compounds hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f92481c82f61649d72475a89bd40a1fd
https://doi.org/10.1016/b978-0-08-057116-4.50014-6
https://doi.org/10.1016/b978-0-08-057116-4.50014-6
This chapter discusses the characteristic frequencies of ethers and peroxides. The characteristic frequencies of ethers and peroxides are because of the vibrations involving C—Ο linkage and O—Ο bonds, respectively. Furthermore, the C–Η vibra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb026b26e9ac399c1e3b0e0492f57487
https://doi.org/10.1016/b978-0-08-057116-4.50011-0
https://doi.org/10.1016/b978-0-08-057116-4.50011-0
Allenes, ketenes, ketene imines, diazo compounds, isocyanates, isothiocyanates, isoselenocyanates, azides, and carbodiimides are examples of cumulated double bonds. The most characteristic frequencies of allenes arise from the out-of-phase and in-pha
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https://explore.openaire.eu/search/publication?articleId=doi_________::dd8702ba11136a9e93d57fc2b2d74b03
https://doi.org/10.1016/b978-0-08-057116-4.50019-5
https://doi.org/10.1016/b978-0-08-057116-4.50019-5
Publisher Summary This chapter examines the characteristic infrared (IR) and Raman group frequencies of alkanes. The characteristic vibrations of alkanes can be categorized as CH motions and skeletal (C—C) vibrations. The vibrations involving CH2 a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::252ec15117b9f4cd67b43f81acd6cd86
https://doi.org/10.1016/b978-0-08-057116-4.50008-0
https://doi.org/10.1016/b978-0-08-057116-4.50008-0
Publisher Summary This chapter discusses the SiH3 stretchings. In the majority of cases, the frequencies of the antisymmetric and symmetric —SiH3 modes are so close as to be indistinguishable. The antisymmetric and symmetric SiH3 stretching frequen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc13597f87b155fe7b55f7bd919f9de0
https://doi.org/10.1016/b978-0-08-057116-4.50021-3
https://doi.org/10.1016/b978-0-08-057116-4.50021-3
Publisher Summary Most haloalkanes show strong bands in the low frequency region of their infrared (IR) and Raman spectra because of the C–X—where, X = F, Cl, Br, and I—stretching vibrations. The frequencies of these C—X vibrations are affect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4b6aabaee04ec1d3343ce2a515ce963
https://doi.org/10.1016/b978-0-08-057116-4.50009-2
https://doi.org/10.1016/b978-0-08-057116-4.50009-2
This chapter discusses the characteristic infrared (IR) and Raman frequencies of —NH 2 , —NHR, and —NR 2 containing compounds. The compounds that contains the —NH 2 , —NHR, and —NR 2 moieties include aliphatic amines, aromatic amines, het
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https://explore.openaire.eu/search/publication?articleId=doi_________::4b4fc9b4cfb9dff7e60e84d578a7a91d
https://doi.org/10.1016/b978-0-08-057116-4.50016-x
https://doi.org/10.1016/b978-0-08-057116-4.50016-x
This chapter discusses the NO 2 stretching. The C—Ν stretching mode is used as a characteristic frequency of NO 2 groupings only for small nitroalkanes. In the infrared (IR) spectra of unconjugated nitroalkanes, the intensity of the antisymmetric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::478d0284fe660749c4540fb0ceef1e44
https://doi.org/10.1016/b978-0-08-057116-4.50017-1
https://doi.org/10.1016/b978-0-08-057116-4.50017-1