The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 2023
Filed:
Mar. 23, 2023
Jiangnan University, Wuxi, CN;
JIANGNAN UNIVERSITY, Jiangsu, CN;
Abstract
The invention provides a nanomaterial of polyglycerol grafted cellulose nanocrystal dendrimer and a preparation method thereof. In the present invention, the cotton linter pulp is pulverized into flocculent fibers, fed to sulfuric acid, and reacted. After centrifugation, dialysis and ultrasonic cell disruption, cellulose nanocrystals are obtained. Carboxylated cellulose nanocrystals are further obtained after oxidation with TEMPO, dialysis, and freeze-drying. The carboxylated nanocrystals are further added to DMF, and under a nitrogen atmosphere, glycidol is grafted to the hydroxyl groups on the surface by heating with stirring. After the reaction is completed, the product is centrifuged, dried under vacuum, dialyzed, and freeze dried to obtain a nanomaterial of primary polyglycerol grafted cellulose nanocrystals. Dendrimers with different particle size ranges can be prepared by controlling the number of reactions, which contain a large number of hydroxyl groups on the surface, and are amenable to various modifications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile