Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Chemical Modification of Xylan
View through CrossRef
Our study is part of the general context of valuing by-products from the wood industry, which consists of the chemical modification of xylan by synthesis of branched copolymers such as xylan-g-PLLA. The used xylan is extracted from chestnut and 4-dimethylaminopyridine (DMAP) is the catalyst. In fact, the synthesis of xylan-graft-poly (L-lactide) copolymer starting from natural and renewable resource products xylan and L-lactide is performed under different conditions. The results of the grafting reaction are unfavorable due to longer time because of depolymerization reactions. Another result is the solubility and insolubility of the copolymers synthesized in water. This first result indicates that there is a change in the properties of xylan. Moreover, the solubility of the xylan-g-PLLA copolymers is different from one study to another. Grafting of PLLA onto xylan was confirmed by Fourier transform infrared (FT-IR) and 1HNMR analyzes. The dynamic mechanical analysis showed that the xylan-g-PLLA plastic materials have interesting thermomechanical properties.
Title: Chemical Modification of Xylan
Description:
Our study is part of the general context of valuing by-products from the wood industry, which consists of the chemical modification of xylan by synthesis of branched copolymers such as xylan-g-PLLA.
The used xylan is extracted from chestnut and 4-dimethylaminopyridine (DMAP) is the catalyst.
In fact, the synthesis of xylan-graft-poly (L-lactide) copolymer starting from natural and renewable resource products xylan and L-lactide is performed under different conditions.
The results of the grafting reaction are unfavorable due to longer time because of depolymerization reactions.
Another result is the solubility and insolubility of the copolymers synthesized in water.
This first result indicates that there is a change in the properties of xylan.
Moreover, the solubility of the xylan-g-PLLA copolymers is different from one study to another.
Grafting of PLLA onto xylan was confirmed by Fourier transform infrared (FT-IR) and 1HNMR analyzes.
The dynamic mechanical analysis showed that the xylan-g-PLLA plastic materials have interesting thermomechanical properties.
Related Results
Xylan-degrading ability of thermophilic Actinobacteria from soil in a geothermal area
Xylan-degrading ability of thermophilic Actinobacteria from soil in a geothermal area
Abstract. Rachmania MK, Ningsih F, Setyaningsih PP, Syafitri WA, Sari DCAF, Yabe S, Yokota A, Oetari A, Sjamsuridjal W. 2020. Xylan-degrading ability of thermophilic Actinobacteria...
Improvement of Paper Strength by Increasing the Xylan Content
Improvement of Paper Strength by Increasing the Xylan Content
Extracted xylan from beech dissolving pulp and eucalyptus kraft pulp was precipitated on unrefined, bleached, once-dried softwood kraft pulp and sulfite pulp. The temperature, pH, ...
Xylan Deconstruction by Environmental Bacterium Caulobacter crescentus
Xylan Deconstruction by Environmental Bacterium Caulobacter crescentus
Bacterial species display unique and common molecular mechanisms for
nutrient acquisition depending on their habitat. Molecular details of
xylan utilization by plant pathogens and ...
Xylan Hemicellulose: A Renewable Material with Potential Properties for Food Packaging Applications
Xylan Hemicellulose: A Renewable Material with Potential Properties for Food Packaging Applications
Xylan hemicelluloses are considered the second most abundant class of polysaccharides after cellulose which has good natural barrier properties necessary for foods packaging papers...
Synthesis and Characterisation of Water‐Soluble β‐Carotene–Xylan Complexes
Synthesis and Characterisation of Water‐Soluble β‐Carotene–Xylan Complexes
β‐Carotene is a useful compound for food fortification because it has beneficial effects on human health. However, it is insoluble in water and sensitive to light, oxygen and tempe...
An AIE-active hemicellulose-based fluorescent polymer derived for Fe3+-responsive optical sensing
An AIE-active hemicellulose-based fluorescent polymer derived for Fe3+-responsive optical sensing
Renewable hemicelluloses such as xylan offer an attractive platform for constructing sustainable functional materials due to their abundance, structural versatility, and rich chemi...
Synthesis and Characterization of Hydrophobically Modified Xylans
Synthesis and Characterization of Hydrophobically Modified Xylans
Xylan is a major type of hemicellulose that has attracted a lot of research and development activities. It is often derivatized in order to improve its properties. In the literatur...
Microbial xylanolytic carbohydrate esterases
Microbial xylanolytic carbohydrate esterases
AbstractThis article reviews microbial esterases participating in the degradation of the major plant hemicellulose, xylan. The main chain of this polysaccharide built of β-1,4-glyc...