RAFT Polymerization: A Versatile Tool for Precision Macromolecular Design and Emerging Applications

Choudhury, Souptik (2025) RAFT Polymerization: A Versatile Tool for Precision Macromolecular Design and Emerging Applications. Masters thesis, Indian Institute of Science Education and Research Kolkata.

Text (MS Dissertation of Souptik Choudhury (20MS107)) 20MS107_Thesis_file.pdf - Submitted Version Restricted to Repository staff only Download (342kB)

Abstract

Reversible addition–fragmentation chain transfer (RAFT) polymerization is a powerful and widely utilized controlled/living radical polymerization (CRP) technique that allows the synthesis of polymers with well-defined molecular weights, narrow dispersities, and complex architectures. Since its introduction, RAFT has revolutionized the design of precision macromolecules due to its broad monomer scope, tolerance to diverse functional groups, and compatibility with various reaction conditions. This thesis aims to provide a comprehensive overview of RAFT polymerization, detailing its underlying mechanism, range of suitable monomers, and the architectures, including block, star, graft, and hyperbranched systems. Particular attention is given to the development of stimuli-responsive polymers and sustainable RAFT strategies using biobased feedstocks. The thesis also highlights key emerging applications in drug and gene delivery, responsive hydrogels, and nanostructured materials. By showcasing both foundational and frontier aspects of RAFT, this thesis underscores the technique's versatility and its enduring relevance in advanced polymer science.

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