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Journal of Analytical and Applied Pyrolysis, 2001 Some of the next articles are maybe not open access.
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Soil Science Society of America Journal, 2000
Tetramethylammonium hydroxide (TMAH) thermochemolysis–gas chromatography/mass spectrometry (GC/MS) was employed to study the chemical structure of soil organic matter sampled from a soil plot in which corn ( Zea mays L.) was farmed continuously for 15 yr.
Benny Chefetz +3 more
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Tetramethylammonium hydroxide (TMAH) thermochemolysis–gas chromatography/mass spectrometry (GC/MS) was employed to study the chemical structure of soil organic matter sampled from a soil plot in which corn ( Zea mays L.) was farmed continuously for 15 yr.
Benny Chefetz +3 more
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Cutaneous and Ocular Toxicology, 2010
Tetramethylammonium hydroxide (TMAH), used in microelectronic industries and research and development, has both corrosive properties and systemic toxicity. Two fatal TMAH occupational exposure cases have been published. Studies comparing initial TMAH decontamination with Diphoterine versus tap water were performed: an in vitro pH titration study and an
Céline, Fosse +6 more
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Tetramethylammonium hydroxide (TMAH), used in microelectronic industries and research and development, has both corrosive properties and systemic toxicity. Two fatal TMAH occupational exposure cases have been published. Studies comparing initial TMAH decontamination with Diphoterine versus tap water were performed: an in vitro pH titration study and an
Céline, Fosse +6 more
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Materials Research Innovations, 2010
AbstractLyocell fibres were treated with tetramethylammonium hydroxide (TMAH) up to 1·5M, which was demonstrated to be more effective than LiOH, NaOH and KOH treatments at the same concentration in the sole interfibrillar swelling region. The porous structure of fibres was studied by inverse size exclusion chromatography to identify mean pore diameter,
H. B. Öztürk +3 more
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AbstractLyocell fibres were treated with tetramethylammonium hydroxide (TMAH) up to 1·5M, which was demonstrated to be more effective than LiOH, NaOH and KOH treatments at the same concentration in the sole interfibrillar swelling region. The porous structure of fibres was studied by inverse size exclusion chromatography to identify mean pore diameter,
H. B. Öztürk +3 more
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Organic Geochemistry, 2004
Abstract Tetramethylammonium hydroxide (TMAH) thermochemolysis is widely used as an effective tool for characterizing hydrolyzable biopolymers such as lignin because it provides more products reflecting structural attributes of the polymer than conventional pyrolysis. However, its functions and the origins of the products are still unclear.
Akiko Nakagawa-izumi +2 more
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Abstract Tetramethylammonium hydroxide (TMAH) thermochemolysis is widely used as an effective tool for characterizing hydrolyzable biopolymers such as lignin because it provides more products reflecting structural attributes of the polymer than conventional pyrolysis. However, its functions and the origins of the products are still unclear.
Akiko Nakagawa-izumi +2 more
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Journal of Agricultural and Food Chemistry, 2002
Lignin model compounds, synthetic lignins, and cedar wood have been analyzed by pyrolysis-gas chromatography(-mass spectrometry) in the presence of tetramethylammonium hydroxide (TMAH) to examine the behavior of beta-5 substructures specifically under these conditions. Two model compounds contained a beta-5 linkage and a gamma-CH2OH group. The phenolic
Ken-Ichi, Kuroda +2 more
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Lignin model compounds, synthetic lignins, and cedar wood have been analyzed by pyrolysis-gas chromatography(-mass spectrometry) in the presence of tetramethylammonium hydroxide (TMAH) to examine the behavior of beta-5 substructures specifically under these conditions. Two model compounds contained a beta-5 linkage and a gamma-CH2OH group. The phenolic
Ken-Ichi, Kuroda +2 more
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Industrial & Engineering Chemistry Research, 2013
A large amount of developer wastewater containing tetramethylammonium hydroxide (TMAH) is discharged from semiconductors and photoelectric industries. The electrodialysis technique was employed for the recovering and concentrating of TMAH from developer wastewater.
Yaoming Wang +3 more
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A large amount of developer wastewater containing tetramethylammonium hydroxide (TMAH) is discharged from semiconductors and photoelectric industries. The electrodialysis technique was employed for the recovering and concentrating of TMAH from developer wastewater.
Yaoming Wang +3 more
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Organic Geochemistry, 1995
Abstract Flash pyrolysis in the presence of tetramethylammonium hydroxide (TMAH) has been utilized for the characterization of lignin in a gymnosperm (pine), angiosperm (alder), and nonwoody ( Juncus effusus L.) vascular plant tissue. The gymnosperm tissue yielded primarily methylated guaiacyl derivatives resulting from cleavage of lignin β-O-4 ...
David J. Clifford +4 more
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Abstract Flash pyrolysis in the presence of tetramethylammonium hydroxide (TMAH) has been utilized for the characterization of lignin in a gymnosperm (pine), angiosperm (alder), and nonwoody ( Juncus effusus L.) vascular plant tissue. The gymnosperm tissue yielded primarily methylated guaiacyl derivatives resulting from cleavage of lignin β-O-4 ...
David J. Clifford +4 more
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Organic Geochemistry, 1999
Abstract The mechanism by which heated tetramethylammonium hydroxide (TMAH) degrades the lignin biopolymer was investigated by the novel application of 13C-labeled TMAH (13C-TMAH) in the thermochemolysis of a synthetic model guaiacyl lignin dimer. GC-MS analysis of the products showed labeling patterns consistent with a base-catalyzed intramolecular ...
T.R. Filley, R.D. Minard, P.G. Hatcher
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Abstract The mechanism by which heated tetramethylammonium hydroxide (TMAH) degrades the lignin biopolymer was investigated by the novel application of 13C-labeled TMAH (13C-TMAH) in the thermochemolysis of a synthetic model guaiacyl lignin dimer. GC-MS analysis of the products showed labeling patterns consistent with a base-catalyzed intramolecular ...
T.R. Filley, R.D. Minard, P.G. Hatcher
exaly +2 more sources
Journal of Agricultural and Food Chemistry, 2005
The thermochemolytic behavior of 4-O-etherified cinnamyl alcohols and aldehydes in lignin was investigated in the presence of tetramethylammonium hydroxide (TMAH) (315 degrees C/4 s), using veratrylglycol-beta-(coniferyl alcohol) ether (1a), veratrylglycol-beta-(sinapyl alcohol) ether (1b), and veratrylglycol-beta-(coniferyl aldehyde) ether (2).
Ken-ichi, Kuroda, Akiko, Nakagawa-Izumi
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The thermochemolytic behavior of 4-O-etherified cinnamyl alcohols and aldehydes in lignin was investigated in the presence of tetramethylammonium hydroxide (TMAH) (315 degrees C/4 s), using veratrylglycol-beta-(coniferyl alcohol) ether (1a), veratrylglycol-beta-(sinapyl alcohol) ether (1b), and veratrylglycol-beta-(coniferyl aldehyde) ether (2).
Ken-ichi, Kuroda, Akiko, Nakagawa-Izumi
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