Surface characterization and radical decay studies of oxygen plasma-treated PMMA films

2012 ◽  
Vol 45 (4) ◽  
pp. 844-853 ◽  
Author(s):  
Ozge Ozgen ◽  
Eda Ayse Aksoy ◽  
Vasif Hasirci ◽  
Nesrin Hasirci
Keyword(s):  
Surface Characterization ◽  
Oxygen Plasma ◽  
Radical Decay

Surface characterization of carbon black modified by oxygen plasma

1989 ◽  
Vol 8 (11) ◽  
pp. 1269-1270 ◽  
Author(s):  
Masamitsu Oshikiri ◽  
Tetsuro Yokono ◽  
Yuzo Sanada
Keyword(s):  
Carbon Black ◽  
Surface Characterization ◽  
Oxygen Plasma

Surface characterization of synthetic vulcanized rubber treated with oxygen plasma

1998 ◽  
Vol 26 (5) ◽  
pp. 385-399 ◽  
Author(s):  
M. Mercedes Pastor-Blas ◽  
José Miguel Martín-Martínez ◽  
John G. Dillard
Keyword(s):  
Surface Characterization ◽  
Oxygen Plasma ◽  
Vulcanized Rubber

The Use of Advanced Analytical Techniques for Characterization of the Chemical, Physical, and Crystallographic Nature of a Surface

1973 ◽  
Vol 31 ◽  
pp. 132-133 ◽  
Author(s):  
R. E. Herfert
Keyword(s):  
Surface Characterization ◽  
Analytical Techniques ◽  
X Ray Diffraction ◽  
Depth Of Penetration ◽  
X Ray ◽  
The Past ◽  
Transmission Electron ◽  
Scanning Electron

Studies of the nature of a surface, either metallic or nonmetallic, in the past, have been limited to the instrumentation available for these measurements. In the past, optical microscopy, replica transmission electron microscopy, electron or X-ray diffraction and optical or X-ray spectroscopy have provided the means of surface characterization. Actually, some of these techniques are not purely surface; the depth of penetration may be a few thousands of an inch. Within the last five years, instrumentation has been made available which now makes it practical for use to study the outer few 100A of layers and characterize it completely from a chemical, physical, and crystallographic standpoint. The scanning electron microscope (SEM) provides a means of viewing the surface of a material in situ to magnifications as high as 250,000X.

Etching of Polymers by Oxygen Plasma

1968 ◽  
Vol 26 ◽  
pp. 408-409
Author(s):  
Virgil Peck ◽  
W. L. Carter
Keyword(s):  
Molecular Weight ◽  
Oxygen Plasma ◽  
Flow Time ◽  
Microscopical Study ◽  
Surface Layers ◽  
Organic Vapors ◽  
Sample Position ◽  
Accuracy Of Measurement ◽  
Bulk Polymers ◽  
Electron Microscopical

Any electron microscopical study of the morphology of bulk polymers has throughout the years been hampered by the lack of any real ability to produce meaningful surface variations for replication. True etching of polymers should show crystalline and amorphous regions in some form of relief. The use of solvents, acids, organic vapors, and inert ion bombardment to etch samples has proved to be useful only in limited applications. Certainly many interpretations of these results are subject to question.The recent use of a radiofrequency (R. F.) plasma of oxygen to degrade and remove organic material with only minor heating has opened a new possibility for etching polymers. However, rigid control of oxygen flow, time, current, and sample position are necessary in order to obtain reproducible results. The action is confined to surface layers; the molecular weight of the polymer residue after heavy etching is the same as the molecular weight of the polymer before attack, within the accuracy of measurement.

Activation of EL-4 T-cells by irradiation with atmospheric oxygen plasma

2020 ◽  
Vol 59 (SJ) ◽  
pp. SJJF03
Author(s):  
Sitti Subaedah ◽  
Haruka Uematsu ◽  
Nobuya Hayashi
Keyword(s):  
T Cells ◽  
Oxygen Plasma ◽  
Atmospheric Oxygen
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