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US 2024/0092943 A1Published application
High-purity manufacturing method of nanocellulose with ultra-highly grafted biopolymer
AssigneeFoundation of Soongsil University-Industry Cooperation
InventorsJae Woo Chung, Hee Cheol Kang, Yong Jun Chang, Jae Woo Lee
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Abstract
The present invention provides a high-purity glucose-based compound ultra-highly substituted with a biopolymer, in which a surface of a glucose-based compound as a natural material is ultra-highly modified with a biopolymer to improve compatibility and dispersibility with biodegradable polymers, thereby significantly improving the mechanical properties of the biodegradable polymer composite.
Claims11
A method of producing a biopolymer-substituted glucose-based compound, the method including:
- a first step of preparing a mixed solution by reacting a glucose-based compound, a biopolymer and a catalyst;
- and
- a second step of adding a solvent to the mixed solution and purifying it,
- wherein the compound has peaks at XRD 2 Theta values(θ) of 22.3°±0.5° and 34.3°±0.5°.
1 more element
A biopolymer-substituted glucose-based compound, which has:
- peaks at XRD 2 Theta values of 22.3°±0.5° and 34.3°±0.5°, and
- a degree of substitution (DS) of 2.5 or more according to Measurement Method 1 below:
- DS
- =
- Terminal
-
- lactyl
-
- units
- -
- Unreacted
-
- anhydroglucose
- hydoxyl
-
- units
- Terminal
-
- lactyl
-
- units
- ×
- 3
- [
- Measurement
-
- Method
-
- 1
- ]
27 more elements
Dependencies are inferred from the claim text.