Detail of "3449-28-3"

Reference

Novel Silicon-Containing Poly(p-phenylenevinylene)-Related Polymers: Synthesis and Optical Properties

Novel Silicon-Containing Poly(p-phenylenevinylene)-Related Polymers: Synthesis and Optical Properties. Kim, Hwan Kyu; Ryu, Mi-Kyung; Lee, Soo-Min (Departments of Macromolecular Science and Chemistry, Hannam University, Taejon 300-791, S. Korea). Macromolecules, 30(4), 1236-1239 (English) 1997 American Chemical Society. CODEN: MAMOBX. ISSN: 0024-9297. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 36, 74 A new class of silicon-contg. poly(p-phenylenevinylene)-related polymers with uniform p-conjugated segment regulated by organosilicon units were synthesized by the Wittig reaction between the dialdehyde and the appropriate diphosphonium salt. The resulting polymers were highly sol. in common org. solvents. The polymers were spin cast onto various substrates to give highly transparent homogeneous thin films without heat treatment. The no.-av. mol. wt. of the resulting polymers is 2500-2800 with a polydispersity of 1.4-1.5. The glass transition temp. was 105-109°. The polymers show strong absorption bands around 345-375 nm, which correspond to the p-p* transition of the conjugated segments. 106-38-7 and 3449-28-3 are just another two chemicals used in this study. The photoluminescence spectra band appeared around 440-480 nm in the blue emission region, since the p-conjugated system is interrupted by organosilicon units. .