Directed Assembly of Cellulose Nanocrystals in Their Native Solid-State Template of a Processed Fiber Cell Wall

Iina Solala*, Carlos Driemeier, Andreas Mautner, Paavo A. Penttilä, Jani Seitsonen, Miika Leppänen, Karl Mihhels, Eero Kontturi*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

7 Downloads (Pure)

Abstract

Nanoparticle assembly is intensely surveyed because of the numerous applications within fields such as catalysis, batteries, and biomedicine. Here, directed assembly of rod-like, biologically derived cellulose nanocrystals (CNCs) within the template of a processed cotton fiber cell wall, that is, the native origin of CNCs, is reported. It is a system where the assembly takes place in solid state simultaneously with the top-down formation of the CNCs via hydrolysis with HCl vapor. Upon hydrolysis, cellulose microfibrils in the fiber break down to CNCs that then pack together, resulting in reduced pore size distribution of the original fiber. The denser packing is demonstrated by N2 adsorption, water uptake, thermoporometry, and small-angle X-ray scattering, and hypothetically assigned to attractive van der Waals interactions between the CNCs.

Original languageEnglish
Article number2100092
Number of pages5
JournalMacromolecular Rapid Communications
Volume42
Issue number12
Early online date6 May 2021
DOIs
Publication statusPublished - Jun 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • acid hydrolysis
  • bio-based materials
  • cellulose
  • nanoparticle assembly
  • porosity

Fingerprint

Dive into the research topics of 'Directed Assembly of Cellulose Nanocrystals in Their Native Solid-State Template of a Processed Fiber Cell Wall'. Together they form a unique fingerprint.

Cite this