Poly propylene imine dendrimers as hydrogen donor in Type II photoinitiated free radical polymerization
Yazarlar (3)
Prof. Dr. Mehmet Atilla TAŞDELEN İstanbul Teknik Üniversitesi, Türkiye
A. Levent Demirel
Koç University, Türkiye
Öğr. Gör. Yusuf Yagci İstanbul Teknik Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı European Polymer Journal (Q1)
Dergi ISSN 0014-3057 Dergi Bilgileri (2007)
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce Basım Tarihi 10-2007
Kabul Tarihi – Yayınlanma Tarihi 01-10-2007
Cilt / Sayı / Sayfa 43 / 10 / 4423–4430 DOI 10.1016/j.eurpolymj.2007.05.042
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0014305707004247
UAK Araştırma Alanları
Polimer Bilimi
Özet
Three generations of poly(propylene imine) dendrimers, namely (PPI-16, PPI-32 and PPI-64; 16, 32 and 64 for generations 3, 4 and 5, respectively) were used as hydrogen donors in photoinitiated free radical polymerization of methyl methacrylate by using one of the following photosensitizers; benzophenone and thioxanthone. The effect of generation number of the dendrimer on photoinitiation efficiency and molecular weight of the resulting polymers was investigated. Glass transition temperatures and particle size measurements of the resulting polymers indicated the presence of nearly stretched polymer chains around the dendrimers. The location of hydrogen donating sites was evaluated by photolysis studies in the absence of monomer by using a stable radical namely, 2,2,6,6-tetramethylpiperidine-N-oxyl free radical (TEMPO) and showed that hydrogen abstraction occurs from the inner tertiary amino groups …
Anahtar Kelimeler
Dendrimer-star polymers | Free radical polymerization | Methyl methacrylate | Photopolymerization | Poly(propylene imine) dendrimers
Science Direct
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 46
Scopus 51
Google Scholar 58
Poly propylene imine dendrimers as hydrogen donor in Type II photoinitiated free radical polymerization