التفاصيل البيبلوغرافية
| 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 |