Naslov
Synthesis of new polyazines by 1, 4 photochemical or anionic polymerization of 1, 2-diaza-1, 3-butadienes

Autori
Attanasi, Orazio A. ; D'Auria, Maurizio ; Emanuele, Lucia ; Favi, Gianfranco ; Filippone, Paolino ; Mantellini, Fabio ; Pucciariello, Rachele ; Racioppi, Rocco.

Izvornik
European polymer journal (0014-3057) 44 (2008), 8; 2545-2550

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
1; 2-diaza-1; 3-butadiene; photochemical polymerization; anionic polymerization; polyazines; thermal behaviour

Sažetak
Photochemical and anionic polymerizations of 1, 2-diaza-1, 3-butadienes are described. Photochemical polymerization was smoothly performed by irradiation of some 1-amino-carbonyl-1, 2-diaza-1, 3-butadienes with high pressure mercury arc (lambda = 300 nm) in the presence of allyltributylstannane. Molecular weights (M-w) in the range 14.6-559 x 10(2) g/ mol were obtained. The TGA curve revealed a first weight loss starting at about 200 degrees C of some 85%, and a second starting at about 300 degrees C. The DSC showed the glass transition (T-g) at about -34 degrees C. Anionic polymerization was performed by treatment of some 1-alkoxycarbonyl-1, 2-diaza-1, 3-butadienes with n-butyllithium. Molecular weights (M-w) in the range 8.44-242 x 10(2) g/mol were obtained.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA