Issue 34, 2021

Achieving molecular weight distribution shape control and broad dispersities using RAFT polymerizations

Abstract

Reversible addition–fragmentation chain-transfer (RAFT) polymerizations are one of the most versatile and powerful polymerization techniques for the synthesis of complex macromolecular architectures. While RAFT polymerizations often give polymers with narrow molecular weight distributions (MWDs), commodity plastics often have broad MWDs to give targeted properties and processability. Thus, new methods to precisely control both MWD breadth and shape are essential for fine-tuning polymer properties for next generation materials. Herein, we report a simple method for controlling polymer MWD features in thermally activated radical RAFT and redox activated cationic RAFT polymerizations by means of metered additions of chain transfer agents.

Graphical abstract: Achieving molecular weight distribution shape control and broad dispersities using RAFT polymerizations

Supplementary files

Article information

Article type
Paper
Submitted
23 mar 2021
Accepted
09 apr 2021
First published
12 apr 2021

Polym. Chem., 2021,12, 4910-4915

Author version available

Achieving molecular weight distribution shape control and broad dispersities using RAFT polymerizations

S. I. Rosenbloom, R. J. Sifri and B. P. Fors, Polym. Chem., 2021, 12, 4910 DOI: 10.1039/D1PY00399B

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