FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4297546369> ?p ?o ?g. }

• W4297546369 endingPage "6356" @default.
• W4297546369 startingPage "6356" @default.
• W4297546369 abstract "For the first time, the process of birch ethanol lignin sulfation with a sulfamic acid-urea mixture in a 1,4-dioxane medium was optimized experimentally and numerically. The high yield of the sulfated ethanol lignin (more than 96%) and containing 7.1 and 7.9 wt % of sulfur was produced at process temperatures of 80 and 90 °C for 3 h. The sample with the highest sulfur content (8.1 wt %) was obtained at a temperature of 100 °C for 2 h. The structure and molecular weight distribution of the sulfated birch ethanol lignin was established by FTIR, 2D 1H and 13C NMR spectroscopy, and gel permeation chromatography. The introduction of sulfate groups into the lignin structure was confirmed by FTIR by the appearance of absorption bands characteristic of the vibrations of sulfate group bonds. According to 2D NMR spectroscopy data, both the alcohol and phenolic hydroxyl groups of the ethanol lignin were subjected to sulfation. The sulfated birch ethanol lignin with a weight average molecular weight of 7.6 kDa and a polydispersity index of 1.81 was obtained under the optimum process conditions. Differences in the structure of the phenylpropane units of birch ethanol lignin (syringyl-type predominates) and abies ethanol lignin (guaiacyl-type predominates) was manifested in the fact that the sulfation of the former proceeds more completely at moderate temperatures than the latter. In contrast to sulfated abies ethanol lignin, the sulfated birch ethanol lignin had a bimodal and wider molecular weight distribution, as well as less thermal stability. The introduction of sulfate groups into ethanol lignin reduced its thermal stability." @default.
• W4297546369 created "2022-09-29" @default.
• W4297546369 creator A5002034871 @default.
• W4297546369 creator A5007120034 @default.
• W4297546369 creator A5034146637 @default.
• W4297546369 creator A5044696820 @default.
• W4297546369 creator A5050830604 @default.
• W4297546369 creator A5073184302 @default.
• W4297546369 creator A5083734810 @default.
• W4297546369 creator A5084103697 @default.
• W4297546369 date "2022-09-26" @default.
• W4297546369 modified "2023-10-18" @default.
• W4297546369 title "An Efficient Method of Birch Ethanol Lignin Sulfation with a Sulfaic Acid-Urea Mixture" @default.
• W4297546369 cites W1964717283 @default.
• W4297546369 cites W1984320080 @default.
• W4297546369 cites W1990189726 @default.
• W4297546369 cites W2001051037 @default.
• W4297546369 cites W2004345831 @default.
• W4297546369 cites W2014450724 @default.
• W4297546369 cites W2031509896 @default.
• W4297546369 cites W2037896028 @default.
• W4297546369 cites W2049753263 @default.
• W4297546369 cites W2054387422 @default.
• W4297546369 cites W2055359825 @default.
• W4297546369 cites W2060206118 @default.
• W4297546369 cites W2064396585 @default.
• W4297546369 cites W2083325147 @default.
• W4297546369 cites W2093877063 @default.
• W4297546369 cites W2145524083 @default.
• W4297546369 cites W2149902591 @default.
• W4297546369 cites W2229542251 @default.
• W4297546369 cites W2230648594 @default.
• W4297546369 cites W2326404986 @default.
• W4297546369 cites W2326557140 @default.
• W4297546369 cites W2482680879 @default.
• W4297546369 cites W2532894243 @default.
• W4297546369 cites W2575677431 @default.
• W4297546369 cites W2575971342 @default.
• W4297546369 cites W2607463512 @default.
• W4297546369 cites W2765127462 @default.
• W4297546369 cites W2767257141 @default.
• W4297546369 cites W2774049996 @default.
• W4297546369 cites W2808740729 @default.
• W4297546369 cites W2890807950 @default.
• W4297546369 cites W2950152379 @default.
• W4297546369 cites W2994189720 @default.
• W4297546369 cites W3004024662 @default.
• W4297546369 cites W3005676627 @default.
• W4297546369 cites W3112992611 @default.
• W4297546369 cites W3121957082 @default.
• W4297546369 cites W3128787002 @default.
• W4297546369 cites W3184304316 @default.
• W4297546369 cites W3209113269 @default.
• W4297546369 cites W4200466544 @default.
• W4297546369 cites W4221053025 @default.
• W4297546369 cites W4244925081 @default.
• W4297546369 cites W616707133 @default.
• W4297546369 doi "https://doi.org/10.3390/molecules27196356" @default.
• W4297546369 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/36234893" @default.
• W4297546369 hasPublicationYear "2022" @default.
• W4297546369 type Work @default.
• W4297546369 citedByCount "3" @default.
• W4297546369 countsByYear W42975463692022 @default.
• W4297546369 countsByYear W42975463692023 @default.
• W4297546369 crossrefType "journal-article" @default.
• W4297546369 hasAuthorship W4297546369A5002034871 @default.
• W4297546369 hasAuthorship W4297546369A5007120034 @default.
• W4297546369 hasAuthorship W4297546369A5034146637 @default.
• W4297546369 hasAuthorship W4297546369A5044696820 @default.
• W4297546369 hasAuthorship W4297546369A5050830604 @default.
• W4297546369 hasAuthorship W4297546369A5073184302 @default.
• W4297546369 hasAuthorship W4297546369A5083734810 @default.
• W4297546369 hasAuthorship W4297546369A5084103697 @default.
• W4297546369 hasBestOaLocation W42975463691 @default.
• W4297546369 hasConcept C127413603 @default.
• W4297546369 hasConcept C13965031 @default.
• W4297546369 hasConcept C155138218 @default.
• W4297546369 hasConcept C160892712 @default.
• W4297546369 hasConcept C178790620 @default.
• W4297546369 hasConcept C185592680 @default.
• W4297546369 hasConcept C2778343803 @default.
• W4297546369 hasConcept C2780161600 @default.
• W4297546369 hasConcept C2781052789 @default.
• W4297546369 hasConcept C42360764 @default.
• W4297546369 hasConcept C521977710 @default.
• W4297546369 hasConcept C55493867 @default.
• W4297546369 hasConcept C63179538 @default.
• W4297546369 hasConceptScore W4297546369C127413603 @default.
• W4297546369 hasConceptScore W4297546369C13965031 @default.
• W4297546369 hasConceptScore W4297546369C155138218 @default.
• W4297546369 hasConceptScore W4297546369C160892712 @default.
• W4297546369 hasConceptScore W4297546369C178790620 @default.
• W4297546369 hasConceptScore W4297546369C185592680 @default.
• W4297546369 hasConceptScore W4297546369C2778343803 @default.
• W4297546369 hasConceptScore W4297546369C2780161600 @default.
• W4297546369 hasConceptScore W4297546369C2781052789 @default.
• W4297546369 hasConceptScore W4297546369C42360764 @default.
• W4297546369 hasConceptScore W4297546369C521977710 @default.

• next