Photoinitiated cationic polymerization of vinyl ethers using substituted vinyl halides

Muhammet U. Kahveci, Mustafa Uygun, M. Atilla Tasdelen, Wolfram Schnabel, Wayne D. Cook, Yusuf Yagci*

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: Dergiye katkıMakalebilirkişi

34 Atıf (Scopus)

Özet

The photoinitiated cationic polymerization of typical vinyl ether monomers, such as isobutyl vinyl ether, di(ethylene glycol) divinyl ether, tri(ethylene glycol) divinyl ether, 1,4-butanediol divinyl ether, and 1,6-hexanediol divinyl ether, by use of aryl-substituted vinyl halides was studied. The cationic polymerization of these monomers was initiated at 0 °C or room temperature upon irradiation at λ = 350 nm in CH2Cl2 solutions with one of the following compounds: 1-bromo-l,2,2-tris(p-methoxyphenyl) ethene, 1-bromo-l-(p-methoxyphenyl)-2,2-diphenylethene, 1-bromo-1,2,2-triphenylethene, and 1-chloro2,2-bis(p-methoxyphenyl)ethene in the presence of zinc iodide (ZnI2). A mechanism involving formation of an adduct between the monomer and the products yielded from the photoinduced homolysis of the vinyl halide followed by electron transfer is proposed. In the subsequent step, the terminal carbon-halide bond in this adduct is activated by the coordinating effect of Znl2. This polymerization exhibited some characteristics of pseudoliving cationic polymerization.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)4443-4448
Sayfa sayısı6
DergiMacromolecules
Hacim42
Basın numarası13
DOI'lar
Yayın durumuYayınlandı - 14 Tem 2009

Parmak izi

Photoinitiated cationic polymerization of vinyl ethers using substituted vinyl halides' araştırma başlıklarına git. Birlikte benzersiz bir parmak izi oluştururlar.

Alıntı Yap