Next Article in Journal
Bulged and Canonical G-Quadruplex Conformations Determine NDPK Binding Specificity
Next Article in Special Issue
Production of Bioactive Compounds from the Sulfated Polysaccharides Extracts of Ulva lactuca: Post-Extraction Enzymatic Hydrolysis Followed by Ion-Exchange Chromatographic Fractionation
Previous Article in Journal
Effects of Organic and Conventional Growing Systems on the Phenolic Profile of Extra-Virgin Olive Oil
Previous Article in Special Issue
Antiviral Effects of Houttuynia cordata Polysaccharide Extract on Murine Norovirus-1 (MNV-1)—A Human Norovirus Surrogate
Article Menu
Issue 10 (May-2) cover image

Export Article

Open AccessArticle

Alkyl-Chitosan-Based Adhesive: Water Resistance Improvement

1
Clermont Auvergne University, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France
2
Normandie Univ, UNIROUEN, Glyco-MEV EA 4358, Glycobiology and Plant Molecular Matrix, EA 4358, 76000 Rouen, France
3
Normandie Univ, UNIROUEN, SFR NORVEGE, 76000 Rouen, France
4
IRSTEA, Laboratory of Engineering for Complex Systems, 9 avenue Blaise Pascal, CS 20085, 63178 Aubière, France
5
Université de Pau et des Pays de l’Adour (UPPA), IPREM, UMR 5254 CNRS/UPPA, Helioparc Pau Pyrénées, 2 avenue P. Angot, 64053 PAU CEDEX 09, France
*
Author to whom correspondence should be addressed.
Academic Editor: Dimitrios Bikiaris
Molecules 2019, 24(10), 1987; https://doi.org/10.3390/molecules24101987
Received: 4 April 2019 / Revised: 21 May 2019 / Accepted: 21 May 2019 / Published: 23 May 2019
  |  
PDF [1624 KB, uploaded 23 May 2019]
  |  

Abstract

A chemical modification by grafting alkyl chains using an octanal (C8) on chitosan was conducted with the aim to improve its water resistance for bonding applications. The chemical structure of the modified polymers was determined by NMR analyses revealing two alkylation degrees (10 and 15%). In this study, the flow properties of alkyl-chitosans were also evaluated. An increase in the viscosity was observed in alkyl-chitosan solutions compared with solutions of the same concentration based on native chitosan. Moreover, the evaluation of the adhesive strength (bond strength and shear stress) of both native and alkyl-chitosans was performed on two different double-lap adherends (aluminum and wood). Alkyl-chitosans (10 and 15%) maintain sufficient adhesive properties on wood and exhibit better water resistance compared to native chitosan. View Full-Text
Keywords: chitosan; alkylation; adhesive; water resistance chitosan; alkylation; adhesive; water resistance
Figures

Figure 1

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

Share & Cite This Article

MDPI and ACS Style

Mati-Baouche, N.; Delattre, C.; de Baynast, H.; Grédiac, M.; Mathias, J.-D.; Ursu, A.V.; Desbrières, J.; Michaud, P. Alkyl-Chitosan-Based Adhesive: Water Resistance Improvement. Molecules 2019, 24, 1987.

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]
Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top