Chain Transfer Kinetics of Rhodixan® A1 RAFT/MADIX Agent
Rhodixan<sup>®</sup> A1 is the trade name for <i>O</i>-ethyl <i>S</i>-(1-methoxycarbonylethyl)dithiocarbonate, a RAFT/MADIX agent used by Syensqo to produce block copolymer additives for aqueous formulations on an industrial scale. Chain transfer coefficients to Rhodixan<sup>®</sup> A1 determined for 25 different styrenic, acrylate, and acrylamide monomers were relatively low (0.6 < C<sub>tr</sub> < 3.8) and evolved in the following order: styrenics < acrylates < acrylamides. The corresponding interchain transfer coefficients followed the same trend (0.6 < C<sub>tr,PnXA1</sub> < 5.9). In all cases, polymers with predetermined <i>M<sub>n</sub></i> are obtained at high monomer conversion, with dispersities inversely proportional to C<sub>tr,PnXA1</sub> in most cases. With the added benefit of the established excellent reactivity of Rhodixan<sup>®</sup> A1 towards unconjugated monomers such as vinyl esters, diallyl, or <i>N</i>-vinyl monomers, RAFT/MADIX is a fantastic technological toolbox for tailor-making complex copolymers from monomers of highly disparate reactivities.
Authors
- Mathias Destarac (ORCID: https://orcid.org/0000-0002-9718-2239)
- Stéphane Mazières (ORCID: https://orcid.org/0000-0002-9889-3470)
- James Wilson (ORCID: https://orcid.org/0009-0008-9401-7036)
- Aymeric Guinaudeau (ORCID: https://orcid.org/0000-0003-2557-2040)
Institutions
- Centre National de la Recherche Scientifique (FR)
- Université Toulouse III - Paul Sabatier (FR)
- Surface du Verre et Interfaces (FR)
Publication Details
- Journal
- Molecules
- Published
- 2024-12-20
- DOI
- https://doi.org/10.3390/molecules29246004
- Primary Topic
- Advanced Polymer Synthesis and Characterization
- Type
- article
- Field-Weighted Citation Impact
- 0.00