## Abstract Wellβcontrolled radical polymerization of methyl methacrylate can be achieved by __in situ__ photochemical generation of copper (I) complex from airβstable copper (II) species without using any reducing agent at room temperature. The living character of this polymerization was confirmed
Photoinduced Controlled Radical Polymerization in Methanol
β Scribed by Mehmet Atilla Tasdelen; Mustafa Uygun; Yusuf Yagci
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 382 KB
- Volume
- 211
- Category
- Article
- ISSN
- 1022-1352
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β¦ Synopsis
Abstract
Photoinduced CRP of methyl methacrylate initiated by in situ generation of copper (I) complex from higher oxidation state species in methanol was investigated. The polymerizations proceeded in a wellβcontrolled manner under UV light at room temperature as evidenced by kinetic and chain extension studies. The evolution of molecular weight with conversion showed good correlation between experimental and theoretical molecular weights, which confirmed good control over polymerization and ensured a narrow MWD. The effect of the methanol on the polymerization was also investigated, and a better agreement between experimental and theoretical molecular weights with a quite narrow MWD was obtained by using methanol as solvent. magnified image
π SIMILAR VOLUMES
We describe the basic kinetic features of "living" polymerizations controlled and regulated by persistent radicals or related species and by reversible atom transfer. In these systems a special kinetic phenomenon operates-the Persistent Radical Ef-fect. It is also known from selective organic synthe