Surface Chemical Characterization Using XPS and TOF-SIMS of Latex Particles Prepared by the Emulsion Copolymerization of Functional Monomers with Methyl Methacrylate and 4-Vinyl Pyridine

Langmuir ◽  
1995 ◽  
Vol 11 (11) ◽  
pp. 4313-4322 ◽  
Author(s):  
M. C. Davies ◽  
R. A. P. Lynn ◽  
J. Hearn ◽  
A. J. Paul ◽  
J. C. Vickerman ◽  
...  
Keyword(s):  
Methyl Methacrylate ◽  
Chemical Characterization ◽  
Surface Chemical ◽  
Latex Particles ◽  
Emulsion Copolymerization ◽  
Functional Monomers ◽  
Tof Sims ◽  
Vinyl Pyridine

Surface Chemical Characterization Using XPS and ToF-SIMS of Latex Particles Prepared by the Emulsion Copolymerization of Methacrylic Acid and Styrene

Langmuir ◽  
1996 ◽  
Vol 12 (16) ◽  
pp. 3866-3875 ◽  
Author(s):  
M. C. Davies ◽  
R. A. P. Lynn ◽  
J. Hearn ◽  
A. J. Paul ◽  
J. C. Vickerman ◽  
...  
Keyword(s):  
Methacrylic Acid ◽  
Chemical Characterization ◽  
Surface Chemical ◽  
Latex Particles ◽  
Emulsion Copolymerization ◽  
Tof Sims

Surface Chemical Characterization Using AES/SAM and ToF-SIMS on KOH-Impregnated Activated Carbon by Selective Adsorption of NOx

2001 ◽  
Vol 40 (15) ◽  
pp. 3337-3345 ◽  
Author(s):  
Young-Whan Lee ◽  
Dae-Ki Choi ◽  
Jin-Won Park
Keyword(s):  
Activated Carbon ◽  
Selective Adsorption ◽  
Chemical Characterization ◽  
Surface Chemical ◽  
Tof Sims

Surface chemical characterization of model glycan surfaces and shelf life studies of glycan microarrays using XPS, NEXAFS spectroscopy, ToF-SIMS and fluorescence scanning

2018 ◽  
Vol 459 ◽  
pp. 860-873 ◽  
Author(s):  
C. Nietzold ◽  
P.M. Dietrich ◽  
M. Holzweber ◽  
A. Lippitz ◽  
A. Kamalakumar ◽  
...  
Keyword(s):  
Shelf Life ◽  
Chemical Characterization ◽  
Surface Chemical ◽  
Nexafs Spectroscopy ◽  
Tof Sims ◽  
Shelf Life Studies

Surface Chemical Characterization of 2.5-μm Particulates (PM2.5) from Air Pollution in Salt Lake City Using TOF-SIMS, XPS, and FTIR

2001 ◽  
Vol 35 (15) ◽  
pp. 3113-3121 ◽  
Author(s):  
Ying-Jie Zhu ◽  
Neal Olson ◽  
Thomas P. Beebe
Keyword(s):  
Air Pollution ◽  
Salt Lake ◽  
Salt Lake City ◽  
Chemical Characterization ◽  
Surface Chemical ◽  
Tof Sims ◽  
Lake City

scholarly journals Chemical Evaluation of Eumelanin Maturation by ToF-SIMS and Alkaline Peroxide Oxidation HPLC Analysis

2020 ◽  
Vol 22 (1) ◽  
pp. 161
Author(s):  
Martin Jarenmark ◽  
Peter Sjövall ◽  
Shosuke Ito ◽  
Kazumasa Wakamatsu ◽  
Johan Lindgren
Keyword(s):  
Molecular Structure ◽  
Secondary Ion Mass Spectrometry ◽  
Chemical Characterization ◽  
Experimental Treatment ◽  
Negative Ion ◽  
Pressure Treatment ◽  
Peroxide Oxidation ◽  
Specific Chemical ◽  
Tof Sims

Residual melanins have been detected in multimillion-year-old animal body fossils; however, confident identification and characterization of these natural pigments remain challenging due to loss of chemical signatures during diagenesis. Here, we simulate this post-burial process through artificial maturation experiments using three synthetic and one natural eumelanin exposed to mild (100 °C/100 bar) and harsh (250 °C/200 bar) environmental conditions, followed by chemical analysis employing alkaline hydrogen peroxide oxidation (AHPO) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). Our results show that AHPO is sensitive to changes in the melanin molecular structure already during mild heat and pressure treatment (resulting, e.g., in increased C-C cross-linking), whereas harsh maturation leads to extensive loss of eumelanin-specific chemical markers. In contrast, negative-ion ToF-SIMS spectra are considerably less affected by mild maturation conditions, and eumelanin-specific features remain even after harsh treatment. Detailed analysis of ToF-SIMS spectra acquired prior to experimental treatment revealed significant differences between the investigated eumelanins. However, systematic spectral changes upon maturation reduced these dissimilarities, indicating that intense heat and pressure treatment leads to the formation of a common, partially degraded, eumelanin molecular structure. Our findings elucidate the complementary nature of AHPO and ToF-SIMS during chemical characterization of eumelanin traces in fossilized organismal remains.

scholarly journals ToF-SIMS Investigations of Tip-Surface Chemical Interactions in Atomic Force Microscopy on a Combined AFM/ToF-SIMS Platform

2017 ◽  
Vol 23 (S1) ◽  
pp. 2082-2083
Author(s):  
Chance C. Brown ◽  
Anton V. Ievlev ◽  
Petro Maksymovych ◽  
Sergei V. Kalinin ◽  
Olga S. Ovchinnikova
Keyword(s):  
Atomic Force Microscopy ◽  
Surface Chemical ◽  
Chemical Interactions ◽  
Force Microscopy ◽  
Atomic Force ◽  
Tof Sims

Design of Pressure-Sensitive Adhesives by Free-Radical Emulsion Copolymerization of Methyl Methacrylate and 2-Ethylhexyl Acrylate. 1. Kinetic Study and Tack Properties

2001 ◽  
Vol 13 (8) ◽  
pp. 2562-2566 ◽  
Author(s):  
A. Aymonier ◽  
E. Papon ◽  
J.-J. Villenave ◽  
Ph. Tordjeman ◽  
R. Pirri ◽  
...  
Keyword(s):  
Free Radical ◽  
Methyl Methacrylate ◽  
Kinetic Study ◽  
Emulsion Copolymerization ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive
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