Matches in SemOpenAlex for { <https://semopenalex.org/work/W3138121377> ?p ?o ?g. }
- W3138121377 endingPage "100081" @default.
- W3138121377 startingPage "100081" @default.
- W3138121377 abstract "Surface modification of cellulose nanocrystals (CNCs) was conducted by an oxa-Michael addition of primary hydroxyl groups on the CNC surface with N-Benzylmaleimide (BnM). Six principles of green chemistry were used to obtain the hydrophobized CNC. Two catalytic approaches were used, a self-catalyzed reaction where alkyl sulfuric acid on the surface of the CNC was the catalyst, and a base-catalyzed approach using triethylamine (TEA). DMSO was chosen as reaction solvent due to its low cost, low toxicity and ability to disperse native CNC compared to other polar diprotic solvents. NMR and FTIR studies confirmed the successful modification of CNCs in both reaction routes. The TEA-catalyzed reaction showed a higher BnM conversion at 70 °C after 72 h (46 ± 2%) compared to the self-catalyzed reaction at 100 °C (24 ± 2%). Since BnM was added at a two-fold excess compared to superficial primary –OH groups, these had estimated conversions of 92% and 48%, for the base catalyzed and acid catalyzed routes, respectively. Zeta potential measurements suggest, the sulfate groups were retained after the modification reaction. AFM demonstrated no change in particle morphology after modification. Modified CNCs degraded at a higher temperature (390 ± 8 °C) when the reaction was catalyzed by TEA compared to native CNCs and the self-catalyzed product (220 ± 10 °C). Contact angle measurements demonstrated the increased hydrophobicity of the modified nanoparticles. Visual inspection and UV–vis spectroscopy demonstrated the modified CNCs had an increased affinity towards organic solvents like acetone, acetonitrile and toluene." @default.
- W3138121377 created "2021-03-29" @default.
- W3138121377 creator A5001893705 @default.
- W3138121377 creator A5010440460 @default.
- W3138121377 creator A5049598865 @default.
- W3138121377 date "2021-01-01" @default.
- W3138121377 modified "2023-10-14" @default.
- W3138121377 title "“Greener” chemical modification of cellulose nanocrystals via oxa-Michael addition with N-Benzylmaleimide" @default.
- W3138121377 cites W1919388396 @default.
- W3138121377 cites W1963800229 @default.
- W3138121377 cites W1976416256 @default.
- W3138121377 cites W1978111970 @default.
- W3138121377 cites W1982041674 @default.
- W3138121377 cites W1985017852 @default.
- W3138121377 cites W1986865690 @default.
- W3138121377 cites W1989958928 @default.
- W3138121377 cites W1994530971 @default.
- W3138121377 cites W1994852665 @default.
- W3138121377 cites W1998774954 @default.
- W3138121377 cites W2001089765 @default.
- W3138121377 cites W2001728208 @default.
- W3138121377 cites W2004902424 @default.
- W3138121377 cites W2007175244 @default.
- W3138121377 cites W2007246271 @default.
- W3138121377 cites W2018743624 @default.
- W3138121377 cites W2025899076 @default.
- W3138121377 cites W2034224879 @default.
- W3138121377 cites W2048887983 @default.
- W3138121377 cites W2054278944 @default.
- W3138121377 cites W2064024081 @default.
- W3138121377 cites W2064272795 @default.
- W3138121377 cites W2066238972 @default.
- W3138121377 cites W2072946238 @default.
- W3138121377 cites W2078095209 @default.
- W3138121377 cites W2086463203 @default.
- W3138121377 cites W2101107741 @default.
- W3138121377 cites W2120749561 @default.
- W3138121377 cites W2139287008 @default.
- W3138121377 cites W2157189496 @default.
- W3138121377 cites W2163507329 @default.
- W3138121377 cites W2219994541 @default.
- W3138121377 cites W2319595584 @default.
- W3138121377 cites W2320870647 @default.
- W3138121377 cites W2321271424 @default.
- W3138121377 cites W2332088472 @default.
- W3138121377 cites W2467412560 @default.
- W3138121377 cites W2583024444 @default.
- W3138121377 cites W2593000785 @default.
- W3138121377 cites W2788417412 @default.
- W3138121377 cites W2897031806 @default.
- W3138121377 cites W2912515446 @default.
- W3138121377 cites W2937257985 @default.
- W3138121377 cites W2941611654 @default.
- W3138121377 cites W2942468085 @default.
- W3138121377 cites W2950001036 @default.
- W3138121377 cites W2969364699 @default.
- W3138121377 cites W3091685319 @default.
- W3138121377 cites W3107123200 @default.
- W3138121377 doi "https://doi.org/10.1016/j.crgsc.2021.100081" @default.
- W3138121377 hasPublicationYear "2021" @default.
- W3138121377 type Work @default.
- W3138121377 sameAs 3138121377 @default.
- W3138121377 citedByCount "10" @default.
- W3138121377 countsByYear W31381213772021 @default.
- W3138121377 countsByYear W31381213772022 @default.
- W3138121377 countsByYear W31381213772023 @default.
- W3138121377 crossrefType "journal-article" @default.
- W3138121377 hasAuthorship W3138121377A5001893705 @default.
- W3138121377 hasAuthorship W3138121377A5010440460 @default.
- W3138121377 hasAuthorship W3138121377A5049598865 @default.
- W3138121377 hasBestOaLocation W31381213771 @default.
- W3138121377 hasConcept C115537861 @default.
- W3138121377 hasConcept C127413603 @default.
- W3138121377 hasConcept C13965031 @default.
- W3138121377 hasConcept C147789679 @default.
- W3138121377 hasConcept C154881586 @default.
- W3138121377 hasConcept C155672457 @default.
- W3138121377 hasConcept C161790260 @default.
- W3138121377 hasConcept C171250308 @default.
- W3138121377 hasConcept C178790620 @default.
- W3138121377 hasConcept C184133267 @default.
- W3138121377 hasConcept C185592680 @default.
- W3138121377 hasConcept C188027245 @default.
- W3138121377 hasConcept C192562407 @default.
- W3138121377 hasConcept C2778142098 @default.
- W3138121377 hasConcept C2778199549 @default.
- W3138121377 hasConcept C2780263894 @default.
- W3138121377 hasConcept C2780471494 @default.
- W3138121377 hasConcept C2781213060 @default.
- W3138121377 hasConcept C2781283055 @default.
- W3138121377 hasConcept C42360764 @default.
- W3138121377 hasConcept C6556556 @default.
- W3138121377 hasConcept C86181022 @default.
- W3138121377 hasConcept C91558341 @default.
- W3138121377 hasConceptScore W3138121377C115537861 @default.
- W3138121377 hasConceptScore W3138121377C127413603 @default.
- W3138121377 hasConceptScore W3138121377C13965031 @default.
- W3138121377 hasConceptScore W3138121377C147789679 @default.