Synthesis and characterization of a novel mid-chain macrophotoinitiator of poly(methyl methacrylate) by Ce(IV)/HNO3 redox system
Polymer Journal, cilt.40, sa.8, ss.729-735, 2008 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 40 Sayı: 8
- Basım Tarihi: 2008
- Doi Numarası: 10.1295/polymj.pj2008060
- Dergi Adı: Polymer Journal
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.729-735
- Anahtar Kelimeler: Block copolymer, Functional polymer, Macrophotoinitiator, Poly (methyl methacrylate), Redox polymerization
- Ankara Hacı Bayram Veli Üniversitesi Adresli: Hayır
Özet
Dihydroxy functional photoinitiator namely, 2-hydroxy-1-[4-(2- hydroxyethoxy)phenyl]-2-methyl propan-1-one (HE-HMPP), Irgacure 2959, has been used as reducing agent in redox initiated free-radical polymerization of methyl methacrylate (MMA) in conjunction with cerium(IV) ammonium nitrate in aqueous nitric acid at 40°C to obtain a novel mid-chain macrophotoinitiator of poly(MMA). The effects of Ce(IV), HE-HMPP, and MMA concentrations on the polymerization rate were investigated. The IR, H NMR, UV, photodegradation, and fluorescence spectroscopic studies revealed that poly(methyl methacrylate) with desired photoinitiator functionality in the polymer chain was obtained. This prepolymer was used in photoinduced free radical polymerization of acrylamide (AAm) and acrylonitrile (AN) to produce block copolymer. © 2008 The Society of Polymer Science.