Matches in SemOpenAlex for { <https://semopenalex.org/work/W1978473552> ?p ?o ?g. }
Showing items 1 to 98 of
98
with 100 items per page.
- W1978473552 endingPage "98" @default.
- W1978473552 startingPage "88" @default.
- W1978473552 abstract "Abstract Thermal reactions of guaiacol (2-methoxyphenol) and syringol (2,6-dimethoxyphenol) were compared in a closed ampoule reactor (N2/400–600 °C/40–600 s) to obtain information on the thermal reactivities of lignin aromatic nuclei, guaiacyl and syringyl types. For both compounds, the O–CH3 bond homolysis, which was observed at >400 °C, initiated their decomposition. This homolysis was followed by several temperature-dependent reactions; radical-induced rearrangement to convert the aromatic OCH3 to aromatic CH3 structures and condensation into high molecular weight (MW) products were the next steps (≈400 °C); then, coke formation became extensive (≈450 °C); effective gas formation required higher temperature such as >550–600 °C. The syringol- and guaiacol-characteristic GC/MS-detectable low MW products were explained with the above mentioned reactions. As for the difference between guaiacol and syringol, coke and gas (especially CH4 and CO2) formation was more extensive in syringol. This effective coking can be explained by the influence of the additional OCH3 group in syringol, which doubles the opportunity for coke formation. This, in turn, reduces the yields of GC/MS-detectable low MW products. Demethoxylation to form guaiacol was also observed in syringol, even though the reactivity was not so high. These reactions are discussed at the molecular level." @default.
- W1978473552 created "2016-06-24" @default.
- W1978473552 creator A5030563520 @default.
- W1978473552 creator A5072440034 @default.
- W1978473552 creator A5080573571 @default.
- W1978473552 date "2011-09-01" @default.
- W1978473552 modified "2023-10-17" @default.
- W1978473552 title "Thermal reactions of guaiacol and syringol as lignin model aromatic nuclei" @default.
- W1978473552 cites W1568746720 @default.
- W1978473552 cites W1604079262 @default.
- W1978473552 cites W1967058891 @default.
- W1978473552 cites W1972682469 @default.
- W1978473552 cites W1973421925 @default.
- W1978473552 cites W1976302507 @default.
- W1978473552 cites W1977358904 @default.
- W1978473552 cites W1979356993 @default.
- W1978473552 cites W1979466165 @default.
- W1978473552 cites W1982306193 @default.
- W1978473552 cites W1992456799 @default.
- W1978473552 cites W1993419400 @default.
- W1978473552 cites W1998881979 @default.
- W1978473552 cites W1998906771 @default.
- W1978473552 cites W2001797859 @default.
- W1978473552 cites W2004345831 @default.
- W1978473552 cites W2004901531 @default.
- W1978473552 cites W2006415937 @default.
- W1978473552 cites W2013793678 @default.
- W1978473552 cites W2019876160 @default.
- W1978473552 cites W2026788984 @default.
- W1978473552 cites W2043052959 @default.
- W1978473552 cites W2047175759 @default.
- W1978473552 cites W2047987591 @default.
- W1978473552 cites W2050088707 @default.
- W1978473552 cites W2052366584 @default.
- W1978473552 cites W2054345644 @default.
- W1978473552 cites W2058715774 @default.
- W1978473552 cites W2087563485 @default.
- W1978473552 cites W2090297928 @default.
- W1978473552 cites W2091642624 @default.
- W1978473552 cites W2092108698 @default.
- W1978473552 cites W2094504196 @default.
- W1978473552 cites W2095585020 @default.
- W1978473552 cites W2165565654 @default.
- W1978473552 doi "https://doi.org/10.1016/j.jaap.2011.04.011" @default.
- W1978473552 hasPublicationYear "2011" @default.
- W1978473552 type Work @default.
- W1978473552 sameAs 1978473552 @default.
- W1978473552 citedByCount "229" @default.
- W1978473552 countsByYear W19784735522012 @default.
- W1978473552 countsByYear W19784735522013 @default.
- W1978473552 countsByYear W19784735522014 @default.
- W1978473552 countsByYear W19784735522015 @default.
- W1978473552 countsByYear W19784735522016 @default.
- W1978473552 countsByYear W19784735522017 @default.
- W1978473552 countsByYear W19784735522018 @default.
- W1978473552 countsByYear W19784735522019 @default.
- W1978473552 countsByYear W19784735522020 @default.
- W1978473552 countsByYear W19784735522021 @default.
- W1978473552 countsByYear W19784735522022 @default.
- W1978473552 countsByYear W19784735522023 @default.
- W1978473552 crossrefType "journal-article" @default.
- W1978473552 hasAuthorship W1978473552A5030563520 @default.
- W1978473552 hasAuthorship W1978473552A5072440034 @default.
- W1978473552 hasAuthorship W1978473552A5080573571 @default.
- W1978473552 hasConcept C161790260 @default.
- W1978473552 hasConcept C178790620 @default.
- W1978473552 hasConcept C185592680 @default.
- W1978473552 hasConcept C2780199054 @default.
- W1978473552 hasConcept C2781052789 @default.
- W1978473552 hasConcept C36759035 @default.
- W1978473552 hasConceptScore W1978473552C161790260 @default.
- W1978473552 hasConceptScore W1978473552C178790620 @default.
- W1978473552 hasConceptScore W1978473552C185592680 @default.
- W1978473552 hasConceptScore W1978473552C2780199054 @default.
- W1978473552 hasConceptScore W1978473552C2781052789 @default.
- W1978473552 hasConceptScore W1978473552C36759035 @default.
- W1978473552 hasFunder F4320323365 @default.
- W1978473552 hasIssue "1" @default.
- W1978473552 hasLocation W19784735521 @default.
- W1978473552 hasOpenAccess W1978473552 @default.
- W1978473552 hasPrimaryLocation W19784735521 @default.
- W1978473552 hasRelatedWork W1530039126 @default.
- W1978473552 hasRelatedWork W1981099626 @default.
- W1978473552 hasRelatedWork W1991805306 @default.
- W1978473552 hasRelatedWork W2007378295 @default.
- W1978473552 hasRelatedWork W2016432578 @default.
- W1978473552 hasRelatedWork W2232110894 @default.
- W1978473552 hasRelatedWork W2381564198 @default.
- W1978473552 hasRelatedWork W2571425692 @default.
- W1978473552 hasRelatedWork W3020855633 @default.
- W1978473552 hasRelatedWork W4212775397 @default.
- W1978473552 hasVolume "92" @default.
- W1978473552 isParatext "false" @default.
- W1978473552 isRetracted "false" @default.
- W1978473552 magId "1978473552" @default.
- W1978473552 workType "article" @default.