Next Article in Journal
Silk Fiber as the Support and Reductant for the Facile Synthesis of Ag–Fe3O4 Nanocomposites and Its Antibacterial Properties
Next Article in Special Issue
Physicochemical Characterization of Functional Lignin–Silica Hybrid Fillers for Potential Application in Abrasive Tools
Previous Article in Journal
A Stress-Induced Martensitic Transformation in Aged Ti49Ni51 Alloy after High-Velocity Impact
Previous Article in Special Issue
Water Uptake Behavior and Young Modulus Prediction of Composites Based on Treated Sisal Fibers and Poly(Lactic Acid)
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessArticle
Materials 2016, 9(7), 499; doi:10.3390/ma9070499

Functionalization of Cellulose Nanocrystals in Choline Lactate Ionic Liquid

1
Materials Division, IK4-CIDETEC Research Centre, Paseo de Miramón 196, 20009 San Sebastián, Spain
2
Chemical and Environmental Engineering Department, University of the Basque Country, Plaza Europa 1, 20018 San Sebastian, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Sofoklis Makridis
Received: 29 April 2016 / Revised: 15 June 2016 / Accepted: 20 June 2016 / Published: 23 June 2016
(This article belongs to the Special Issue Advances in Functionalization of Lignocellulosic Materials)
View Full-Text   |   Download PDF [3789 KB, uploaded 23 June 2016]   |  

Abstract

Cellulose nanocrystals (CNCs) are valuable nanomaterials obtained from renewable resources. Their properties make them suitable for a wide range of applications, including polymer reinforcement. However, due to their highly hydrophilic character, it is necessary to modify their surface with non-polar functional groups before their incorporation into a hydrophobic polymer matrix. In this work, cellulose nanocrystals were modified using a silane coupling agent and choline lactate, an ionic liquid derived from renewable resources, as a reaction medium. Modified cellulose nanocrystals were characterized by infrared spectroscopy, showing new peaks associated to the modification performed. X-ray diffraction was used to analyze the crystalline structure of functionalized cellulose nanocrystals and to optimize the amount of silane for functionalization. Poly(lactic acid) (PLA) nanocomposites containing 1 wt % of functionalized cellulose nanocrystals were prepared. They were characterized by field-emission scanning electron microscopy (FE-SEM) and mechanical tests. The use of choline lactate as reaction media has been shown to be an alternative method for the dispersion and silanization of the cellulose nanocrystals without the addition of an external catalyst. View Full-Text
Keywords: cellulose nanocrystals; functionalization; ionic liquid; poly(lactic acid) (PLA); nanocomposite cellulose nanocrystals; functionalization; ionic liquid; poly(lactic acid) (PLA); nanocomposite
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Montes, S.; Azcune, I.; Cabañero, G.; Grande, H.-J.; Odriozola, I.; Labidi, J. Functionalization of Cellulose Nanocrystals in Choline Lactate Ionic Liquid. Materials 2016, 9, 499.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top