Affinity of hardly soluble or insoluble substance solvent by water-soluble xylan

摘要

One object of the present invention is to provide a method of improving the affinity of a solvent for the surface of a hardly soluble or insoluble substances. Further object of the invention is providing a molded article comprising a hardly soluble or insoluble substances using the solution of a hardly soluble or insoluble substances. A method for improving affinity of a substance surface for a solvent, comprising: bringing the substance surface into contact with water-soluble xylan and the solvent, wherein the substance is hardly soluble or insoluble in the solvent in the absence of the water-soluble xylan. A solution comprising an added water-soluble xylan, a substance, and a solvent, wherein the substance is hardly soluble or insoluble in the solvent in the absence of the water-soluble xylan. A molded article comprising the added water-soluble xylan and the hardly soluble substance.

主权项

1. A solution comprising an added water-soluble xylan, wherein the water-soluble xylan is a molecule having six or more xylose residues connected to each other by β-1,4 bonds and is capable of dissolving in water at 20° C. at a concentration of at least 6 mg/mL, a substance, and a solvent, wherein only less than about 10 g of the substance can be dissolved in 1 L of the solvent in the absence of the water-soluble xylan, wherein said substance is a carbon nanotube, wherein the number average degree of polymerization of the main chain of said water-soluble xylan is 6 or more and 5,000 or less, wherein the number-average molecular weight of said water-soluble xylan is 7,000 or more and 1,000,000 or less, wherein said water-soluble xylan is unmodified glucuronoxylan or unmodified arabinoglucuronoxylan.