Photografted polymeric networks based on N -isopropylacrylamide: Depth profiling by infrared spectroscopy

2017 ◽  
Vol 135 (13) ◽  
pp. 46048
Author(s):  
Mihaela Avadanei
Keyword(s):  
Infrared Spectroscopy ◽  
Depth Profiling ◽  
Polymeric Networks

Glass Hydration Mechanisms with Application to Obsidian Hydration Dating

1988 ◽  
Vol 123 ◽  
Author(s):  
William B. White
Keyword(s):  
Infrared Spectroscopy ◽  
Three Dimensional ◽  
Depth Profiling ◽  
Structural Disorder ◽  
Degree Of Polymerization ◽  
Concentration Profiles ◽  
Surface Layers ◽  
Profiling Techniques ◽  
High Degree ◽  
Depth Concentration

AbstractChemical analysis of typical obsidians place them with a group of silica- and alumina-rich glasses constructed of a three dimensional framework of silica and alumina tetrahedra with nearly all tetrahedra sharing corners. Raman and infrared spectra of unweathered obsidians confirm the high degree of polymerization as well as some additional structural disorder. Analysis of dissolution rates of various glasses shows obsidian to be among the most stable, comparable to the most durable synthetic glasses. Surface layers on glasses can be chemically characterized by depth-profiling techniques such as SIMS and SIPS that give depth-concentration profiles for individual elements. Hydration rinds on glasses can be structurally characterized by infrared spectroscopy which shows both hydration and re-polymerization as the rinds age. Because obsidians are already completely polymerized glasses, their hydration rinds are mainly a result of hydrolysis and alkali exchange.

scholarly journals Potential of short-wave infrared spectroscopy for quantitative depth profiling of stratum corneum lipids and water in dermatology

2018 ◽  
Vol 9 (5) ◽  
pp. 2436 ◽  
Author(s):  
Anna Ezerskaia ◽  
Natallia Eduarda Uzunbajakava ◽  
Gerwin J. Puppels ◽  
Johanna de Sterke ◽  
Peter J. Caspers ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Stratum Corneum ◽  
Depth Profiling ◽  
Short Wave ◽  
Stratum Corneum Lipids ◽  
Short Wave Infrared

Infrared spectroscopy depth profiling of organic thin films

2021 ◽  
Author(s):  
Jinde Yu ◽  
Yifan Xing ◽  
Zichao Shen ◽  
Yuanwei Zhu ◽  
Dieter Neher ◽  
...  
Keyword(s):  
Thin Films ◽  
Infrared Spectroscopy ◽  
Ir Spectra ◽  
Plasma Etching ◽  
Depth Profiling ◽  
Organic Thin Films ◽  
Organic Films ◽  
Organic Film ◽  
Film Property

FDD-IR spectra combined with soft plasma etching is introduced to study organic film property along film-depth. It provides insights into different kinds of organic films, all equipment and methodology are easily accessible in laboratories worldwide.

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