Optimization of the Heterogeneous Synthesis Conditions for Cellulose Tosylation and Synthesis of a Propargylamine Cellulosic Derivative DOI Open Access
Marcos V. Ferreira,

Poliana Ricci,

Henrique A. Sobreira

et al.

Polymers, Journal Year: 2024, Volume and Issue: 17(1), P. 58 - 58

Published: Dec. 29, 2024

Cellulose tosylate (MCC-Tos) is a key derivative for surface modification and crucial precursor cellulose compatibilization in click reactions, enabling its functionalization advanced applications. Replacing tosyl groups with alkyne broadens cellulose’s potential biocompatible such as thiol-yne chemistry protein/enzyme immobilization. To achieve this, we optimized the heterogeneous synthesis of MCC-Tos using Doehlert matrix statistical design, evaluating influence interaction reaction conditions. The conditions—144 h time, 10:1 molar ratio, 30 °C—yielded degree substitution (DStos) 1.80, determined via elemental analysis FTIR-ATR spectroscopy. kinetics followed first-order model. A subsequent propargylamine produced aminopropargyl (MCC-PNH), reducing DStos by 65%, which was confirmed FTIR, improving thermal stability margin °C (TGA/DTG). 13C CP/MAS NMR group attachment, further validated coupling an azide-functionalized coumarin through copper(I)-catalyzed alkyne-azide cycloaddition (CuAAC). Fluorescence microscopy UV spectroscopy were used to estimate 0.21. This study establishes feasible route synthesizing alkyne-functionalized cellulose, paving way eco-friendly materials, including bioconjugates, composites, materials CuAAC reactions.

Language: Английский

Rational design of microwave absorbing cryogels using microcrystalline cellulose and cellulose-derived nutshell/metal nanoparticles DOI Creative Commons

Farbod Fazlalizadeh,

Zahra Nezafat, Shahrzad Javanshir

et al.

Industrial Crops and Products, Journal Year: 2025, Volume and Issue: 229, P. 120954 - 120954

Published: April 5, 2025

Language: Английский

Citations

0
Tailoring cellulose: from extraction and chemical modification to advanced industrial applications DOI
Abolfazl Jahani,

Mohammad Hossein Jazayeri

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 142950 - 142950

Published: April 1, 2025

Language: Английский

Citations

0
Cellulose-Based Sorbents: A Comprehensive Review of Current Advances in Water Remediation and Future Prospects DOI Creative Commons
A.S. Darmenbayeva,

R. Reshmy,

Bakytgul Massalimova

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(24), P. 5969 - 5969

Published: Dec. 18, 2024

Cellulose-based sorbents are promising materials for wastewater treatment due to their environmental friendliness, biodegradability, and high sorption capacity. This paper presents an overview of cellulose modification methods, including carboxylation, amination, oxidation, graphene, plasma treatments, as well combined approaches. Their effect on key physicochemical properties, such porosity, morphology, chemical stability, is considered. Examples from the literature confirm effectiveness modified in removing heavy metal ions organic pollutants wastewater. The analysis shows that methods allow creating with improved characteristics resistant extreme operating conditions. main advantages disadvantages sorbents, challenges associated scalability cost-effectiveness, discussed. emphasizes importance further research advance these a element sustainable water technologies.

Language: Английский

Citations

1
Optimization of the Heterogeneous Synthesis Conditions for Cellulose Tosylation and Synthesis of a Propargylamine Cellulosic Derivative DOI Open Access
Marcos V. Ferreira,

Poliana Ricci,

Henrique A. Sobreira

et al.

Polymers, Journal Year: 2024, Volume and Issue: 17(1), P. 58 - 58

Published: Dec. 29, 2024

Cellulose tosylate (MCC-Tos) is a key derivative for surface modification and crucial precursor cellulose compatibilization in click reactions, enabling its functionalization advanced applications. Replacing tosyl groups with alkyne broadens cellulose’s potential biocompatible such as thiol-yne chemistry protein/enzyme immobilization. To achieve this, we optimized the heterogeneous synthesis of MCC-Tos using Doehlert matrix statistical design, evaluating influence interaction reaction conditions. The conditions—144 h time, 10:1 molar ratio, 30 °C—yielded degree substitution (DStos) 1.80, determined via elemental analysis FTIR-ATR spectroscopy. kinetics followed first-order model. A subsequent propargylamine produced aminopropargyl (MCC-PNH), reducing DStos by 65%, which was confirmed FTIR, improving thermal stability margin °C (TGA/DTG). 13C CP/MAS NMR group attachment, further validated coupling an azide-functionalized coumarin through copper(I)-catalyzed alkyne-azide cycloaddition (CuAAC). Fluorescence microscopy UV spectroscopy were used to estimate 0.21. This study establishes feasible route synthesizing alkyne-functionalized cellulose, paving way eco-friendly materials, including bioconjugates, composites, materials CuAAC reactions.

Language: Английский

Citations

0