AI Article Synopsis
- The study applied HCl gas treatments to Scots pine wood to control its macrostructure while analyzing the impact on its microstructure, resulting in a preserved cellular structure.
- Wood's initial moisture content (iMC) significantly influenced the hydrolysis process, with higher iMCs leading to more hemicellulose degradation, while crystalline cellulose microfibrils remained mostly unchanged.
- Interestingly, higher iMCs increased the concentration of accessible OH groups, but the HCl treatment also reduced the amount of absorbed DO molecules, independent of the changes in OH concentration.
Article Abstract
The HCl gas system previously used to produce cellulose nanocrystals was applied on Scots pine wood, aiming at a controlled deconstruction of its macrostructure while understanding the effect on its microstructure. The HCl gas treatments resulted in a well-preserved cellular structure of the wood. Differences in wood initial moisture content (iMC) prior to HCl gas treatment played a key role in hydrolysis rather than the studied range of exposure time to the acidic gas. Higher iMCs were correlated with a higher degradation of hemicellulose, while crystalline cellulose microfibrils were not largely affected by the treatments. Remarkably, the hydrogen-deuterium exchange technique showed an increase in accessible OH group concentration at higher iMCs, despite the additional loss in hemicelluloses. Unrelated to changes in the accessible OH group concentration, the HCl gas treatment reduced the concentration of absorbed DO molecules.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8892909 | PMC |
| http://dx.doi.org/10.1021/acsomega.1c06773 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!