Now showing items 1-10 of 20
Time-related wettability characteristic of acrylic resin surfaces treated by glow discharge
STATEMENT OF PROBLEM: Adhesion and cohesion have important roles in denture retention, and attempts have been made to improve the wettability of the acrylic resin material by surface treatments. PURPOSE: This study examined ...
Characterization of degradation products of polyethylene oxide by pyrolysis mass spectrometry
(Pergamon Press, 1994)
The techniques of direct and indirect (evolved gas analysis) pyrolysis MS are used to characterize the thermal degradation products of polyethylene oxide. Using direct pyrolysis MS technique the main degradation process ...
A study of the chemiionization reactions of Ca, Sr and Ba with O2(X 3Σ-g)
Chemielectron and chemiion spectra resulting from the reactions of effusive beams of Ca, and Sr and Ba (in their ground 1S states) with ground state molecular oxygen O2(X 3Σ- g) have been recorded using electron spectroscopy ...
Electron spectroscopy for material characterization
Basic principles of the two electron spectroscopic techniques, the x-ray photoelectron spectroscopy, XPS, and the Auger electron spectroscopy, AES, are given. Their utilization in material characterization are introduced ...
Photoelectron spectroscopy: a tool in sorption studies
Photoelectron spectroscopy using AlK α (h ν =1486.3 eV) has been applied to study the sorption of Cs+ , Sr2+ , Ba2+ , Zn2+ and Co2+ on magnesite kaolinite, smectite and chlorite. From the observed intensities of photoelectron ...
XPS investigations on conducting polymers
X-ray photoelectron spectroscopy, XPS, was used for the characterization of electrically conducting polymeric materials. In the spectrum of polypyrrole, PPy, the Nls region exhibits two peaks, at 402.0 and 399.8 eV, ...
XPS characterization of Bi and Mn collected on atom-trapping silica for AAS
(Sage Publications, Inc., 1999)
The chemical state of analyte species collected on a water-cooled silica tube during atom-trapping atomic absorption spectrometric determination is investigated with the use of X-ray photoelectron spectroscopy (XPS) for ...
Analysis of polymers using evolved-gas and direct-pyrolysis techniques
(Royal Society of Chemistry, 1994)
Thermal analysis of polystyrene, poly(p-methylstyrene) and poly(α-methylstyrene) has been carried out using evolved-gas analysis by infrared and mass spectrometry, and direct-pyrolysis analysis by mass spectrometric ...
Investigation of thin films SiO2 obtained by low temperature plasmachemical deposition
(American Institute of Physics, 1994-07-26)