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Effect of Source on the Properties and Behavior of Cellulose Nanocrystal Suspensions
- Schütz, Christina, Van Rie, Jonas, Eyley, Samuel, Gençer, Alican, van Gorp, Hans, Rosenfeldt, Sabine, Kang, Kyongok, Thielemans, Wim
- ACS sustainable chemistry & engineering 2018 v.6 no.7 pp. 8317-8324
- acid hydrolysis, cellulose, cellulosic fibers, cotton, diffusivity, liquids, nanocrystals, statistical analysis, sulfuric acid, surface tension, viscosity, wood
- Sulfuric acid hydrolysis of native cellulose fibers results in colloidally stable suspensions of cellulose nanocrystals (CNCs). We have investigated the effect of the cellulose source on the suspension properties of CNCs extracted from cotton and wood sources using a comparable preparation strategy. The structural properties were revealed to be similar within the given standard deviation and prevalent polydispersity, whereas other properties such as liquid crystalline phase behavior, viscosity, diffusion coefficients, and surface tension were found to differ significantly. This study shows that ostensibly similar suspensions may exhibit rather differing behaviors and attempts to interpret this phenomenon. This finding shows that full characterization and a detailed description of the preparation of the nanocrystals used in publications are extremely important and should be reported in detail in all instances.