Cellulose ethers are functionalized biopolymers that are industrially produced through drastic conditions employing gaseous reactants with a high risk of industrial accident. The cellulose ethers that are commercially available generally bear short carbon-chains. In this work, an alternative method using non-gaseous chemicals is proposed. It relies on the use of the Suzuki-Miyaura reaction employing mild, moisture- and air-stable conditions. Relatively innocuous reagents are used for this step, which allows the formation of a wide range of cellulose ethers bearing various functional groups with different chain-length.
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http://dx.doi.org/10.1016/j.carbpol.2014.03.089 | DOI Listing |
Microbiome
January 2025
Instituto de Investigación de La Viña y El Vino, Escuela de Ingeniería Agraria, Universidad de León, Avenida de Portugal, 41, León, 24009, Spain.
Polymers (Basel)
December 2024
Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai'an 271018, China.
Paper-based packaging materials have gained attention from academia and industry for their outstanding environmental sustainability advantages. However, they still encounter major challenges, such as low mechanical strength and inadequate functionality, hindering the replacement of unsustainable packaging materials. Inspired by the remarkable strength of trees provided by cellulose fibers and the water and heat protection of trees provided by bark, this study developed a new biomass-based packaging material (SNC-C) that combines strength, thermal insulation, and water resistance.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
School of Chemistry and Chemical Engineering Southeast University, Jiangning District, Nanjing, Jiangsu Province 211189, PR China. Electronic address:
Inkless paper made from photochromic materials has garnered significant interest owing to its potential to reduce both ink and paper pollution during production. In this research, we synthesized a dual-material film (EC-PVP/PGMEA/PMoA) and conducted a detailed investigation of its photochromic response to visible light and its microstructural properties. Initially, the film appeared as a translucent yellow, but upon exposure to visible light, it shifted to blue with a maximum absorption peak of 2.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Chemistry Department, Kurukshetra University, Kurukshetra 136119, Haryana, India. Electronic address:
The use of enzymes as catalysts in industrial processes has been studied, and they offer more ecologically friendly options for chemical reactions. In the current work, we investigated the potential of molecular modeling to solve the ordinarily difficult problem of identifying the amino acids involved in the covalent mode of immobilization by in silico investigations. The immobilized α-Amylase on Cellulose tosylate (henceforth referred to as Celltos) shows extra peaks of OH and NH, CN, SO, C-O-C, and CS.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou 450002, China. Electronic address:
This study developed a "one-pot" three-stage process using a "multifunctional" deep eutectic solvent (DES) containing choline chloride (ChCl), ethylene glycol (EG), and protonic acids for the production of phenolic monomers, furfural, and glucose. In the first stage, the DES effectively dissolved over 70 % of lignin and 78 % of hemicellulose while preserving aryl ether bonds in lignin due to the grafting of EG onto the aryl ether bonds. Concurrently, the retention of a near-quantitative amount of cellulose led to a glucose yield of >80 % after enzymatic saccharification.
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