- Turkish Journal of Chemistry
- Vol: 28 Issue: 4
- Photoinitiated Crosslinking and Grafting of Methylmethacrylate Using N,N-Dimethyl Amino Functional P...
Photoinitiated Crosslinking and Grafting of Methylmethacrylate Using N,N-Dimethyl Amino Functional Polystyrene Block Copolymers
Authors : Ali Ekrem Müftüoğlu, Yusuf Yağci, Kazunori Se
Pages : 469-476
View : 12 | Download : 9
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :Monodisperse poly(N,N-dimethyl-4-vinylphenethylamine)-block-polystyrene was synthesized via anionic living polymerization carried out at -78 °C under a pressure of 10-6 torr using cumyl potassium as the initiator. Subsequent photoinduced radical polymerization of styrene through side chain-functional N,N-dimethyl amino groups yielded a crosslinked polymer and a brush type block-graft copolymer to a lesser extent. Upon irradiation at a wavelength of 350 nm, macroradicals were generated via hydrogen abstraction from amino side-chain groups by the excited benzophenone. The block-graft copolymer was characterized by 1H-NMR, IR, and GPC analysis.Keywords : Living anionic polymerization, photoinitiated radical polymerization, crosslinked polymer, brush block copolymer, block-graft copolymer