Chain Transfer Kinetics of Rhodixan<sup>®</sup> 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 R...
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MDPI AG
2024-12-01
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| Online Access: | https://www.mdpi.com/1420-3049/29/24/6004 |
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| author | Mathias Destarac Aymeric Guinaudeau Stéphane Mazières James Wilson |
| author_facet | Mathias Destarac Aymeric Guinaudeau Stéphane Mazières James Wilson |
| author_sort | Mathias Destarac |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-2f2e63ba6b044192bd089027a1d65af7 |
| institution | DOAJ |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-2f2e63ba6b044192bd089027a1d65af72025-08-20T02:43:49ZengMDPI AGMolecules1420-30492024-12-012924600410.3390/molecules29246004Chain Transfer Kinetics of Rhodixan<sup>®</sup> A1 RAFT/MADIX AgentMathias Destarac0Aymeric Guinaudeau1Stéphane Mazières2James Wilson3Laboratoire SOFTMAT, CNRS UMR 5623, University of Toulouse, University Toulouse III-Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse Cedex 9, FranceLaboratoire SOFTMAT, CNRS UMR 5623, University of Toulouse, University Toulouse III-Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse Cedex 9, FranceLaboratoire SOFTMAT, CNRS UMR 5623, University of Toulouse, University Toulouse III-Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse Cedex 9, FranceSyensqo, Centre de Recherche et Innovation Aubervilliers, 52 Rue de la Haie Coq, 93308 Aubervilliers Cedex, FranceRhodixan<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.https://www.mdpi.com/1420-3049/29/24/6004xanthateRAFTradical polymerizationchain transferkinetics |
| spellingShingle | Mathias Destarac Aymeric Guinaudeau Stéphane Mazières James Wilson Chain Transfer Kinetics of Rhodixan<sup>®</sup> A1 RAFT/MADIX Agent Molecules xanthate RAFT radical polymerization chain transfer kinetics |
| title | Chain Transfer Kinetics of Rhodixan<sup>®</sup> A1 RAFT/MADIX Agent |
| title_full | Chain Transfer Kinetics of Rhodixan<sup>®</sup> A1 RAFT/MADIX Agent |
| title_fullStr | Chain Transfer Kinetics of Rhodixan<sup>®</sup> A1 RAFT/MADIX Agent |
| title_full_unstemmed | Chain Transfer Kinetics of Rhodixan<sup>®</sup> A1 RAFT/MADIX Agent |
| title_short | Chain Transfer Kinetics of Rhodixan<sup>®</sup> A1 RAFT/MADIX Agent |
| title_sort | chain transfer kinetics of rhodixan sup r sup a1 raft madix agent |
| topic | xanthate RAFT radical polymerization chain transfer kinetics |
| url | https://www.mdpi.com/1420-3049/29/24/6004 |
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