Academic Journal
Effects of Solvent and Monomer on the Kinetics of Radical Generation in Atom Transfer Radical Polymerization
| العنوان: | Effects of Solvent and Monomer on the Kinetics of Radical Generation in Atom Transfer Radical Polymerization |
|---|---|
| المؤلفون: | Fantin, Marco, Tognella, Enrico, Antonello, Andrea, Lorandi, Francesca, Calore, Elia, Macior, Angelika, Durante, Christian, Isse, Abdirisak A. |
| المصدر: | ChemElectroChem ; volume 11, issue 6 ; ISSN 2196-0216 2196-0216 |
| بيانات النشر: | Wiley |
| سنة النشر: | 2024 |
| المجموعة: | Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: | Unlike classical radical polymerization, the kinetics of atom transfer radical polymerization show significant solvent dependence, possibly arising from solvent effects on the activation step. A kinetic study on the activation of the initiator ethyl α‐bromoisobutyrate by [Cu I TPMA] + (TPMA=tris(2‐pyridylmethyl)amine), an initiator/catalyst combination frequently used in ATRP, was carried out in DMSO, DMF, MeCN, anisole, ethyl acetate, and their 50 vol % mixtures with styrene (STY) and methyl methacrylate (MMA). k act values varying about 3 orders of magnitude from 3.14×10 5 mol −1 dm 3 s −1 in DMSO to 9.41×10 2 mol −1 dm 3 s −1 in ethyl acetate were found. These values showed excellent correlation with the solvent polarity/polarizability parameter π*. The effect of MMA or STY depended on polarity compatibility between the monomer and the solvent: After monomer addition, k act decreased considerably in polar solvents, whereas it was almost unaffected in nonpolar solvents. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1002/celc.202300662 |
| الاتاحة: | http://dx.doi.org/10.1002/celc.202300662 |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: | edsbas.6585E8CB |
| قاعدة البيانات: | BASE |
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