Matches in SemOpenAlex for { <https://semopenalex.org/work/W4253397134> ?p ?o ?g. }
Showing items 1 to 68 of
68
with 100 items per page.
- W4253397134 abstract "<div>Surfactants such as quaternary ammonium salts (QAS) have been in increasing demand, for emerging new applications. Recent attempts at process intensification of</div><div>their production, have disclosed the need for a better understanding of QAS thermal stability. This work aims to determine degradation kinetics of various QASs, and the</div><div>associated solvent effects. Degradation kinetics of four methyl carbonate QASs were determined in various</div><div>polar solvents in stainless steel batch autoclaves. <sup>1</sup>H NMR spectrometry was employed for online analysis of the reaction mixtures. The kinetic parameters were then used</div><div>to compare the thermal stability of the four compounds in the polar solvents. Water showed not degradation, and methanol (MeOH) was the solvent that provided the</div><div>second-best stability. Water-MeOH mixtures may provide an overall optimum. More, and longer long-chain substituents increased the degradation rate. Thermogravimetric Analysis was used to obtain the thermal stability in a solid-</div><div>state, i.e. solventless environment. Isoconversional analysis showed that no reliable kinetic parameters could be determined. Nevertheless, the data did allow for a compar-</div><div>ison of the thermal stability of 14 different QASs. Furthermore, the relative instability of the compounds in solid-state demonstrated the challenges of solventless QAS production.</div>" @default.
- W4253397134 created "2022-05-12" @default.
- W4253397134 creator A5000269313 @default.
- W4253397134 creator A5033762528 @default.
- W4253397134 creator A5068052562 @default.
- W4253397134 creator A5079121431 @default.
- W4253397134 date "2021-04-08" @default.
- W4253397134 modified "2023-09-24" @default.
- W4253397134 title "Degradation Kinetics and Solvent Effects of Various Long-Chain Quaternary Ammonium Salts" @default.
- W4253397134 doi "https://doi.org/10.26434/chemrxiv.14381540" @default.
- W4253397134 hasPublicationYear "2021" @default.
- W4253397134 type Work @default.
- W4253397134 citedByCount "0" @default.
- W4253397134 crossrefType "posted-content" @default.
- W4253397134 hasAuthorship W4253397134A5000269313 @default.
- W4253397134 hasAuthorship W4253397134A5033762528 @default.
- W4253397134 hasAuthorship W4253397134A5068052562 @default.
- W4253397134 hasAuthorship W4253397134A5079121431 @default.
- W4253397134 hasBestOaLocation W42533971341 @default.
- W4253397134 hasConcept C121332964 @default.
- W4253397134 hasConcept C127413603 @default.
- W4253397134 hasConcept C13965031 @default.
- W4253397134 hasConcept C148898269 @default.
- W4253397134 hasConcept C178790620 @default.
- W4253397134 hasConcept C185592680 @default.
- W4253397134 hasConcept C2779607525 @default.
- W4253397134 hasConcept C2779679103 @default.
- W4253397134 hasConcept C2779870022 @default.
- W4253397134 hasConcept C2780471494 @default.
- W4253397134 hasConcept C41008148 @default.
- W4253397134 hasConcept C42360764 @default.
- W4253397134 hasConcept C59061564 @default.
- W4253397134 hasConcept C60100273 @default.
- W4253397134 hasConcept C62520636 @default.
- W4253397134 hasConcept C76155785 @default.
- W4253397134 hasConceptScore W4253397134C121332964 @default.
- W4253397134 hasConceptScore W4253397134C127413603 @default.
- W4253397134 hasConceptScore W4253397134C13965031 @default.
- W4253397134 hasConceptScore W4253397134C148898269 @default.
- W4253397134 hasConceptScore W4253397134C178790620 @default.
- W4253397134 hasConceptScore W4253397134C185592680 @default.
- W4253397134 hasConceptScore W4253397134C2779607525 @default.
- W4253397134 hasConceptScore W4253397134C2779679103 @default.
- W4253397134 hasConceptScore W4253397134C2779870022 @default.
- W4253397134 hasConceptScore W4253397134C2780471494 @default.
- W4253397134 hasConceptScore W4253397134C41008148 @default.
- W4253397134 hasConceptScore W4253397134C42360764 @default.
- W4253397134 hasConceptScore W4253397134C59061564 @default.
- W4253397134 hasConceptScore W4253397134C60100273 @default.
- W4253397134 hasConceptScore W4253397134C62520636 @default.
- W4253397134 hasConceptScore W4253397134C76155785 @default.
- W4253397134 hasLocation W42533971341 @default.
- W4253397134 hasLocation W42533971342 @default.
- W4253397134 hasOpenAccess W4253397134 @default.
- W4253397134 hasPrimaryLocation W42533971341 @default.
- W4253397134 hasRelatedWork W10695425 @default.
- W4253397134 hasRelatedWork W12257556 @default.
- W4253397134 hasRelatedWork W13049021 @default.
- W4253397134 hasRelatedWork W16007612 @default.
- W4253397134 hasRelatedWork W20187037 @default.
- W4253397134 hasRelatedWork W24727393 @default.
- W4253397134 hasRelatedWork W3250196 @default.
- W4253397134 hasRelatedWork W6370906 @default.
- W4253397134 hasRelatedWork W9008499 @default.
- W4253397134 hasRelatedWork W22643243 @default.
- W4253397134 isParatext "false" @default.
- W4253397134 isRetracted "false" @default.
- W4253397134 workType "article" @default.