Green Grafting: Innovations in Polymer Functionalization for Sustainable Solutions in Pharmaceutical and Healthcare Industry (Part 1)

Mechanochemical Green Grafting: Methods, Environmental Benefits, and Uses

Author(s): Vijayshri Rokde, Kishor Danao, Deweshri Nandurkar, Shweta Saboo* and Ujwala Mahajan

Pp: 271-288 (18)

DOI: 10.2174/9798898811686126010011

* (Excluding Mailing and Handling)

Abstract

Mechanochemistry has garnered considerable attention as a potent, longlasting, efficient, eco-friendly, and economical synthesis technique for creating new functional materials. This method is based on physicochemical reactions that are accelerated by mechanical force using milling and grinding. Mechanochemical synthesis is described as a chemical reaction that occurs through the absorption of mechanical energy. To facilitate chemical reactivity, reactions are carried out by grinding the reagents using ball-mill devices, such as vibrating, planetary, tumbler ballmills, or single-screw devices, which employ mechanical forces. This technique is reported for the practical, solvent-free synthesis of superhydrophobic surfaces using a mechanochemical approach. One-step mechanochemical grafting was employed to generate thiol-functionalized montmorillonite, resulting in covalent organic frameworks (COFs) with excellent iodine capture properties as adsorbents. MOFs comprise the following widely used structures: ZIF-8, HKUST-1, MIL-101, UiO-66, and MOF-5. These approaches are used to prepare bio-inspired metal–organic frameworks, novel metallopharmaceuticals and metallodrugs, phenol hydrazone derivatives, cyclodextrin nanosponges (CD-NS) polymers, copper oxide nanoparticles, and silver nanoparticles for antibacterial activity; to perform mechanoactivation of silicon to synthesize alkoxysilanes; to synthesize heterocyclic derivatives using a ball mill; to produce pharmaceutical cocrystals; and to synthesize catalysts. The distinguishing features of mechanochemical processes over solution-based chemistry include more selective reactions, which allow for simpler work-up procedures.


Keywords: Ball mill, COF, Green grafting, Mechanochemistry, MOF, Nanoparticles.