Physico-chemical properties of xylans

Pulp and paper industry has a decisive role in development of sustainable future. Their products are not only fibers but also polymeric wood extracts such as hemicelluloses or polysaccharides. Wood xylans are polysaccharides consisting of xylose monosaccharide backbone that contains glucuronic acid substitutes Although the molecules are hydrophilic, the high molecular weight grades that are needed for engineered materials can be solubilized in water only to a limited extent or not at all, which limits general application of wood xylans. We will study dispersibility of xylans from different suppliers and in-house sample. The dispersibility will be studied in two solvents, DMSO and water. The different xylans varies in molecular weight, sugar substitution and uronic acid content. With this knowledge we will predict dispersibility of different xylans in solvents such as DMSO and water.

制浆造纸工业对可持续未来的发展具有决定性作用。其产物不仅包含纤维，还涵盖半纤维素、多糖等木质基聚合物提取物。木聚糖（xylan）是一类以木糖单糖为分子骨架，且骨架上带有葡萄糖醛酸取代基的多糖。尽管该类分子具备亲水性，但用于制备工程材料所需的高分子量品级木聚糖，仅能有限溶于水甚至完全不溶于水，这极大限制了木聚糖的通用应用场景。本研究将针对不同供应商提供的木聚糖及内部自制样品，探究其分散性能；实验将选用二甲基亚砜（DMSO）与水两种溶剂开展测试。不同木聚糖样品在分子量、糖取代度及糖醛酸含量上均存在差异。基于上述特性参数，我们将预测不同木聚糖在DMSO及水等溶剂中的分散性能。

搜集汇总

背景与挑战

背景概述

该数据集研究了不同来源木聚糖在DMSO和水中的分散性，旨在预测其在不同溶剂中的行为。数据由ISIS Neutron and Muon Source的SANS2D仪器收集，发布于2025年9月27日，采用RAW/Nexus格式。