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Phosphorylated cellulose nanofibrils (CNF) have been shown to have tremendous potential in a broad range of applications including flame-retardant materials, high-capacity renewable ion exchange materials or substrates exhibiting controlled biomineralization as well as biocompatibility. Compared to CNF, cellulose nanocrystals (CNC) have exhibited improved colloidal stability and higher potential for controlled assembly applications. Yet harnessing these properties for phosphorylated CNC has been impossible thus far due to laborious extraction procedures that suffer from low degrees of substitution, poor reproducibility and inadequate yields. We can overcome these drawbacks by combining the modification routines for phosphorylated CNF with hydrolysis by gaseous HCl to liberate CNC. This allows us to reliably and reproducibly isolate phosphorylated CNC with exceptionally high surface charges at high yields and minimal water consumption.
|Title of host publication||NWBC 2022|
|Subtitle of host publication||The 10th Nordic Wood Biorefinery Conference|
|Publisher||VTT Technical Research Centre of Finland|
|Publication status||Published - 2022|
|MoE publication type||B3 Non-refereed article in conference proceedings|
|Event||Nordic Wood Biorefinery Conference - Scandic Park Helsinki, Helsinki, Finland|
Duration: 25 Oct 2022 → 27 Oct 2022
Conference number: 10
|Conference||Nordic Wood Biorefinery Conference|
|Period||25/10/2022 → 27/10/2022|
FingerprintDive into the research topics of 'Efficient New Extraction Method for Highly Charged Phosphorylated CNC'. Together they form a unique fingerprint.
- 1 Finished
01/05/2018 → 31/12/2022
Project: Academy of Finland: Other research funding