Cellulose-Based Metallogels—Part 1: Raw Materials and Preparation

Author:

Mikhailidi Aleksandra1ORCID,Volf Irina2ORCID,Belosinschi Dan3,Tofanica Bogdan-Marian24ORCID,Ungureanu Elena5

Affiliation:

1. Higher School of Printing and Media Technologies, St. Petersburg State University of Industrial Technologies and Design, 191186 St. Petersburg, Russia

2. Faculty of Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University of Iasi, 73 Prof. Dr. Docent D. Mangeron Boulevard, 700050 Iasi, Romania

3. Département de Chimie-Biologie/Biologie Medicale, Université du Québec à Trois-Rivières, Trois-Rivieres, QC G8Z 4M3, Canada

4. IF2000 Academic Foundation, 73 Prof. Dr. Docent D. Mangeron Boulevard, 700050 Iasi, Romania

5. Department of Exact Sciences, “Ion Ionescu de la Brad” University of Life Sciences Iasi, 3 Mihail Sadoveanu Alley, 700490 Iasi, Romania

Abstract

Metallogels are a class of materials produced by the complexation of polymer gels with metal ions that can form coordination bonds with the functional groups of the gel. Hydrogels with metal phases attract special attention due to the numerous possibilities for functionalization. Cellulose is preferable for the production of hydrogels from economic, ecological, physical, chemical, and biological points of view since it is inexpensive, renewable, versatile, non-toxic, reveals high mechanical and thermal stability, has a porous structure, an imposing number of reactive OH groups, and good biocompatibility. Due to the poor solubility of natural cellulose, the hydrogels are commonly produced from cellulose derivatives that require multiple chemical manipulations. However, there is a number of techniques of hydrogel preparation via dissolution and regeneration of non-derivatized cellulose of various origins. Thus, hydrogels can be produced from plant-derived cellulose, lignocellulose and cellulose wastes, including agricultural, food and paper wastes. The advantages and limitations of using solvents are discussed in this review with regard to the possibility of industrial scaling up. Metallogels are often formed on the basis of ready-made hydrogels, which is why the choice of an adequate solvent is important for obtaining desirable results. The methods of the preparation of cellulose metallogels with d-transition metals in the present state of the art are reviewed.

Publisher

MDPI AG

Subject

Polymers and Plastics,Organic Chemistry,Biomaterials,Bioengineering

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