Next Article in Journal
Homoserine Lactone as a Structural Key Element for the Synthesis of Multifunctional Polymers
Previous Article in Journal
DNA Compaction and Charge Inversion Induced by Organic Monovalent Ions
Previous Article in Special Issue
Rapid Mercury(II) Removal by Electrospun Sulfur Copolymers
Article Menu
Issue 4 (April) cover image

Export Article

Open AccessArticle
Polymers 2017, 9(4), 129; doi:10.3390/polym9040129

Preparation and Characterization of Water-Soluble Xylan Ethers

1
Fraunhofer Institute for Applied Polymer Research IAP, Geiselbergstr. 69, 14476 Potsdam-Golm, Germany
2
Salzenbrodt GmbH & Co KG, Hermsdorfer Str. 70, D-13437 Berlin, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: André Laschewsky
Received: 30 September 2016 / Revised: 20 March 2017 / Accepted: 27 March 2017 / Published: 31 March 2017
(This article belongs to the Special Issue Polymers for Aqueous Media)
View Full-Text   |   Download PDF [2766 KB, uploaded 31 March 2017]   |  

Abstract

Xylan is a predominant hemicellulose component that is found in plants and in some algae. This polysaccharide is made from units of xylose (a pentose sugar). One promising source of xylan is oat spelt. This feedstock was used for the synthesis of two xylan ethers. To achieve water soluble products, we prepared dihydroxypropyl xylan as a non-ionic ether on the one hand, and carboxymethyl xylan as an ionic derivative on the other hand. Different preparation methods like heterogeneous, pseudo-homogeneous, and homogeneous syntheses were compared. In the case of dihydroxypropyl xylan, the synthesis method did not significantly affect the degree of substitution (DS). In contrast, in the case of carboxymethyl xylan, clear differences of the DS values were found in dependence on the synthesis method. Xylan ethers with DS values of >1 could be obtained, which mostly show good water solubility. The synthesized ionic, as well as non-ionic, xylan ethers were soluble in water, even though the aqueous solutions showed slight turbidity. Nevertheless, stable, transparent, and stainable films could be prepared from aqueous solutions from carboxymethyl xylans. View Full-Text
Keywords: hemicellulose; xylan ether; solubility; etherification hemicellulose; xylan ether; solubility; etherification
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 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

Hettrich, K.; Drechsler, U.; Loth, F.; Volkert, B. Preparation and Characterization of Water-Soluble Xylan Ethers. Polymers 2017, 9, 129.

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]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top