Cellulose nanocrystals (CNCs)AmidationAromatic molecule1-methyl-3-phenylpropylamine (1-M-3-PP)In this study, the grafting of 1-methyl-3-phenylpropylamine (1-M-3-PP) on cellulose nanocrystals (CNCs) via a two-step reaction route was investigated and compared with physico-chemical surface ...
Cellulose nanocrystalsCNCsOxidationTEMPOKineticsSurface functionalizationCellulose nanocrystals were successfully oxidized with sodium hypochlorite using catalytic amounts of sodium bromide and 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) radical at pH 10 in water. Carboxy...
Hydrophobic cellulose nanocrystals modified with quaternary ammonium salts 6-tetramethylpiperidine-1-oxyl radical (TEMPO)-oxidized nanofibrillated cellulose from a softwood pulp, and characterized by atomic force microscopy (AFM) ... M Salajková,LA Berglund,Q Zhou - 《Journal of Materials Chemistry》...
Key words :TEMPO oxidation;ultrasonic;nanocrystalline cellulose 纳米纤维素是一种直径为1~100nm,长度为几十到几百纳米的刚性棒状纤维素,具有优良的机械性能㊁光学性能㊁生物可降解性㊁热稳定性等,可被广泛应用于高性能复合材料[1]㊁生物医药材料[2]以及食品行业[3]㊂在过去几十年中,纳米纤维素的预处理...
Molecular mass and molecular-mass distribution of TEMPO-oxidized celluloses and TEMPO-oxidized cellulose nanofibrils. Biomacromolecules. 2015;16:675–81. Article CAS PubMed Google Scholar Zhou Y, Saito T, Bergström L, Isogai A. Acid-free preparation of cellulose nanocrystals by TEMPO oxidation ...
We systematically investigated the effect of film-forming polyvinyl alcohol and crosslinkers, glyoxal and ammonium zirconium carbonate, on the optical and surface properties of films produced from TEMPO-oxidized cellulose nanofibers (TOCNFs). In this reg
A related study comparing TONc with MFC and cellulose nanocrystals (CNC) as reinforcements in hydroxypropylcellulose (HPC), showed TONc reinforcements as producing the most significant changes to HPC properties. The results of dynamic mechanical analysis and creep compliance measurements could ...
The fabrication process of TOCNFs is more environmentally friendly than that of other types of cellulose, such as microfibrillated cellulose (MFC) and cellulose nanocrystals (CNCs), and TOCNFs possess a more uniform and ultrafine diameter. In recent years, TOCNF‐based adsorbents, nanocomposites, ...
Transparent cellulose films from 2,2,6,6-tetramethylpiperidine-1-oxyl radical oxidized cellulose nanocrystals (TOCNs) and 64wt% sulfuric acid treated cellulose nanocrystals (SACNs) were prepared from bleached wood pulp. Film morphology, optical, mechanical, thermal, and surface wettability properties ...
Cellulose nanocrystals RT: Room temperature TP: TEMPO periodate oxidized SG: Starch glycerol composite AFM: Atomic force microscopy CA: Contact angle WVP: Water vapor permeability References Bejoy T, Raj MC, Joy J, Moores A, Drisko GL, Sanchez C (2018) Nanocellulose, a versatile green...